[utility model content]
For overcoming problems of the prior art, the utility model proposes a kind of gas-turbine unit axial force testing sensor equipment condition checkout gear and method, solving the test result deviation causing final assembly because of the uncertain of confined state.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of gas-turbine unit axial force testing sensor confined state pick-up unit, comprise bottle gouard moved by hands, digital scale, bearing, loading frock, bearing seat and acquisition system, bearing seat is fixed on ground, first axial force transducer, the second axial force transducer are installed in bearing seat and lay respectively at bearing upper/lower terminal face, load frock and be placed in bearing lower end, hang in loading frock upper end after bottle gouard moved by hands is connected with digital scale; Two pressure sensor signal output terminals are connected with acquisition system; Manually cucurbit provides the load force value of predetermined load to increments such as pressure transducer applyings, and the size of adjustment input load force value, makes the output loads value of digital scale consistent with the force value of timing signal.
Described first axial force transducer and the second axial force transducer adopt strain gauge transducer.
Described first axial force transducer, bearing and the second axial force transducer are all loaded in bearing seat, and the first axial force transducer and the second axial force transducer are fixed in bearing seat with set nut and pin respectively.
Described digital scale is fixedly connected with bottle gouard moved by hands, and bottle gouard moved by hands is fixedly connected with Tian Liang, and digital scale is hung in loading frock upper end by suspension hook.
Gas-turbine unit axial force testing sensor confined state pick-up unit of the present utility model, comprise bottle gouard moved by hands, digital scale, bearing, load frock, bearing seat and acquisition system, under the condition of built-up member (assembly), axial force testing sensor confined state is proofreaded, avoid having assembled in rear system test and find the linear slope deviation of data and the anti-error that pushes away causing force value, effectively can solve the partially overproof possibility of reaction thrust value, avoid causing extra manpower because of the overproof and lower ride overhaul of axial force, the waste of material resources, for axial force testing provides more true and reliable data foundation.
This apparatus design is reasonable, and compact conformation is easy for installation, simple to operate.Engine axial force transducer assembling precision is improved in actual mechanical process.Solve the test result deviation causing final assembly because of confined state uncertain, avoid because of sensor assembly precision reason cause engine shaft to force value the overproof and possibility of decomposition of leaving office.
[embodiment]
Below in conjunction with drawings and Examples, the utility model is further described, but the utility model is not limited to following examples.
The present embodiment is a kind of gas-turbine unit axial force transducer confined state detection method device, structural representation is shown in accompanying drawing 1, comprises bottle gouard moved by hands 1, digital scale 2, first axial force transducer 3, bearing 4, loads frock 5, bearing seat 7, acquisition system 8, second axial force transducer 11.
The pick-up unit that the utility model proposes comprises sensor, bearing seat, digital scale, suspension hook, bottle gouard moved by hands, set nut, screw, pin, also include acquisition system, load frock, wherein, bearing seat is fixed on ground, sensor is installed in bearing seat, load frock and be placed in bearing lower end, bottle gouard moved by hands and digital scale hang in upper end; Load frock to be connected with suspension hook, suspension hook is connected with digital scale; Digital scale is connected with bottle gouard moved by hands; Pressure sensor signal output terminal is connected to form closed loop with control acquisition system; Loading force is shown on digital scale.
The force cell assembling of high pressure rotor bearing rear end as shown in Figure 1, according to the matching requirements of engine interior axial force transducer, it is inner that the present embodiment mesohigh rotor bearing rear end second axial force transducer 11 and bearing 4 are all loaded on bearing seat 7, first high pressure rotor bearing rear end second axial force transducer 11 is installed on bearing seat, and fix with pin 10, draw signal wire from endoporus and be connected with acquisition system 8.Bearing 4 upper surface is contacted with the lower surface of the second axial force transducer 11.Be installed in bearing seat 7 by high pressure rotor bearing front end first axial force transducer 3 again, its upper surface contacts with bearing 4 lower surface, then fixes with set nut 6.Loading frock 5 disk place is positioned at bearing 4 lower end makes loading frock 5 disk place upper surface contact with the lower surface of bearing 4, is connected to hook place, digital scale 2 lower end.Digital scale 2 is fixedly connected with bottle gouard moved by hands 1, and bottle gouard moved by hands 1 is fixedly connected with Tian Liang.For ensureing that verticality test parts of slinging makes it slowly drop on machine frame parallel to the ground perpendicular to ground and fixing after parts have assembled.With simulated engine axial force transducer actual working state, according to sensor measurement scope, manually cucurbit 1 provides the load force value of predetermined load to increments such as sensor applyings, be respectively 0kN, 5kN, 10kN, 15kN, 20kN, 25kN, 30kN, the size of adjustment input load force value, makes the output loads value of digital scale 2 consistent with the force value of timing signal.
The signal output part of the second axial force transducer 11 is connected to form closed loop with control acquisition system 7 and carries out strain signal data acquisition.The assembling of low pressure rotor bearing force cell is as Fig. 1, and test method is identical with the test method of high pressure rotor bearing rear end force cell.
The force cell assembling of high pressure rotor bearing front end as shown in Figure 2, according to the matching requirements of engine interior axial force transducer, it is inner that high pressure rotor bearing front end first axial force transducer 3 and bearing 4 are all loaded on bearing seat 7, first high pressure rotor bearing rear end second axial force transducer 11 is installed in bearing seat 7, and fix with pin 10, draw signal wire from endoporus and be connected with acquisition system 8.Bearing 4 lower surface is contacted with the upper surface of the second axial force transducer 11.High pressure rotor bearing front end first axial force transducer 3 to be installed on above bearing 4 and to contact with bearing 4 upper surface.Thereafter high pressure rotor bearing front end first axial force transducer 3 is fixed with set nut 6.Loading frock 5 disk place is positioned at bearing 4 lower end makes loading frock 5 disk place upper surface contact with the lower surface of bearing 4, is connected to hook place, digital scale 2 lower end.Digital scale 2 is fixedly connected with bottle gouard moved by hands 1, and bottle gouard moved by hands 1 is fixedly connected with Tian Liang.For ensureing that verticality test parts of slinging makes it slowly drop on machine frame parallel to the ground perpendicular to ground and fixing after parts have assembled.With simulated engine axial force transducer actual working state, according to sensor measurement scope, manually cucurbit 1 provides the load force value of predetermined load to increments such as sensor applyings, be respectively 0kN, 5kN, 10kN, 15kN, 20kN, 25kN, 30kN, the size of adjustment input load force value, makes the output loads value of digital scale 2 consistent with the force value of timing signal.
The signal output part of the first axial force transducer 3 is connected to form closed loop with control acquisition system 7 and carries out strain signal data acquisition.By having tested the collection contrast of test figure, can find confined state before engine final assembly under, whether test data result is consistent with the test data of demarcating under environment, realizes the detection check and correction under gas-turbine unit axial force transducer confined state.
As shown in Figure 3 and Figure 4, the first axial force transducer 3, second axial force transducer 11 adopts strain gauge transducer.Its test principle is elastic body is pasted the sensor that the stress that produces of foil gauge induction distortional elastomer carries out testing.Elastic body is annular flexible steel ring, has the boss of alternative arrangement at the upper surface of this elastic body annulus and lower surface respectively.Every one side has 9 boss, considers that its reliability posts two-way 6 groups of foil gauges altogether between boss.In every one side 9 boss, any one or one are mingled with the materials such as grit with convex platform place and just can cause a certain road or the skew of two paths of data linear gradient, cannot judge which is authentic and valid larger if there is two paths of data deviation in final system test, or likely two paths of data not authentic and valid.
The method is for guaranteeing the detection that test data judgment accuracy increases between Laboratory Calibration and system test, is also emphasis of the present utility model.Because do not have this link may cause the error in judgement of Engine Block Test and form unnecessary human and material resources, the loss of financial resources in test process before, add in order to avoid unnecessary the disassembling except engine failure in assembling process to the link of the detection of confined state.The advantage of the method is under the condition of built-up member (assembly), axial force testing sensor confined state is proofreaded, avoid having assembled in rear system test and find the linear slope deviation of data and the anti-error that pushes away causing force value, effectively can solve the partially overproof possibility of reaction thrust value, avoid the waste causing extra human and material resources because of the overproof and lower ride overhaul of axial force, for axial force testing provides more true and reliable data foundation.
Example
Illustrated by high pressure rotor bearing front end first axial force transducer two states:
1, high pressure rotor bearing front end first axial force transducer nominal data is compared with the practical set condition test data of workshop.It is identical that confined state Test Data Collecting and nominal data gather acquired parameter, and 6 groups of foil gauges are divided into two paths of signals passage.In practical set state, wherein accompany impurity under boss near a road foil gauge.Its tables of data is as follows:
Table 1 high pressure rotor bearing front end first axial force transducer nominal data
Force value |
CH3 |
CH4 |
0 |
0 |
0 |
5 |
454 |
442 |
10 |
896 |
889 |
15 |
1357 |
1349 |
20 |
1803 |
1793 |
25 |
2245 |
2234 |
30 |
2691 |
2678 |
Table 2 one tunnel is mingled with the data after impurity
Force value |
CH3 |
CH4 |
0 |
0 |
0 |
5 |
442 |
570 |
10 |
889 |
1136 |
15 |
1349 |
1714 |
20 |
1793 |
2283 |
25 |
2234 |
2847 |
30 |
2678 |
3428 |
2, high pressure rotor bearing front end first axial force transducer nominal data is compared with the practical set condition test data of workshop.Confined state Test Data Collecting is identical with nominal data acquisition parameter, and 6 groups of foil gauges are divided into two paths of signals passage.In practical set state, wherein accompany impurity under corresponding boss near two-way foil gauge.Its tables of data is as follows:
Table 3 high pressure rotor bearing front end first axial force transducer nominal data
Force value |
CH3 |
CH4 |
0 |
0 |
0 |
5 |
404 |
402 |
10 |
808 |
797 |
15 |
1179 |
1167 |
20 |
1556 |
1544 |
25 |
1931 |
1925 |
30 |
2308 |
2301 |
Table 4 two-way is mingled with data after impurity
Force value |
CH3 |
CH4 |
0 |
0 |
0 |
5 |
478 |
484 |
10 |
926 |
935 |
15 |
1415 |
1411 |
20 |
1915 |
1929 |
25 |
2396 |
2401 |
30 |
2874 |
2877 |