CN203298956U - Measuring device for dynamic characteristic of main nozzle installation system - Google Patents
Measuring device for dynamic characteristic of main nozzle installation system Download PDFInfo
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- CN203298956U CN203298956U CN2013203166230U CN201320316623U CN203298956U CN 203298956 U CN203298956 U CN 203298956U CN 2013203166230 U CN2013203166230 U CN 2013203166230U CN 201320316623 U CN201320316623 U CN 201320316623U CN 203298956 U CN203298956 U CN 203298956U
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- main burner
- slay
- installation system
- reed
- measuring device
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Abstract
The utility model discloses a measuring device for dynamic characteristics of a main nozzle installation system. The device comprises a force sensor disposed on a force hammer, an acceleration sensor disposed on a main nozzle base, a strain gage group disposed on a going part, and a signal analyzer. The acceleration sensor is connected with the signal analyzer through a load amplifier, the strain gage group is connected with the signal analyzer through a bridge signal processor, and the force sensor is connected with the signal analyzer through a charge-amplifier. The device can measure dynamic stiffness and dynamic damping of the nozzle installation system, and service life of main nozzle installation system components is prolonged, operating ratio of weaving machines is improved, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of measurement mechanism in loom field, is specifically related to a kind of main burner installation system dynamic characteristic measuring device.
Background technology
The main burner installation site be the main injection air-flow directly facing to the reed groove of reed, so main burner moves with reed, main burner is fixed on reed.When reed moves, the main burner synchronous follow-up, main burner is arranged on the left extension of slay together with the main burner seat.Jet loom runs up, and the left extension of main burner and slay has been divided into semi-girder, and the mass formation dynamic loading outside the slay base plate of overhanging, be subject to dynamic bending load in movement of the sley, cause the left extension of slay to fracture.
Jet loom is when running up, the pendulum angle of movement of the sley only has 25o, a series of faults but appear, comprise slay left extension fracture, failure cause is not that static strength or the joint stiffness of machinery is inadequate, but main burner installation system bad dynamic performance is subject to one extra bending moment during the slay high speed swinging, under the repeated action of bending moment, dynamic stiffness has descended.Therefore need to measure joint stiffness and the damping of main burner seat installing component under the dynamic bending moment loading, the response of measuring main burner seat and slay extension at the slay bending direction.
The mechanical part that runs up must be lightweight, the dynamic loading size is proportional to component weight, main burner, main burner seat and slay all adopt light material, and lightweight parts amplitude is large when vibration, and dynamic perfromance and dynamic stiffness when the left extension of understanding slay swings are necessary.For the light beam of quality, little load produces large deformation, and rigidity diminishes, and it is submissive that rod member becomes.In slay at a high speed swings, relatively submissive slay easily produces vibration, the left extension of slay is the weak link of system, solution is or increases rigidity or increase flexibility, therefore must know dynamic stiffness and the dynamic damping of system, the best way is the dynamic characteristic by the thermometrically installation system.
With reference to shown in Figure 1, the jet-stream wind of main burner directly faces toward the reed groove of reed, when reed moves, and the main burner synchronous follow-up.Main burner, this part physical construction of main burner seat are positioned at the wefting insertion side of loom, and main burner and guide wire are arranged on the main burner seat, and the main burner seat is with bolted on the left extension of slay, and slay is fastened on the slay base plate.The left extension of slay is comprised of parts such as main burner installation system, lay sword, slay base plate, slays.
The left extension of main burner and slay has been divided into semi-girder, the mass formation outside the slay base plate of overhanging when running up inharmonic dynamic loading, slay swings and has been subject to dynamic bending load, causes the left extension of slay to fracture.
The utility model content
The purpose of this utility model is to overcome the above problem that prior art exists, a kind of main burner installation system dynamic characteristic measuring device is provided, by knocking that power is hammered into shape, on power sensor output signal and main burner seat, on slay, the response signal of test point is input to analyser, through data, process and analysis software solves dynamic stiffness and the dynamic damping of main jet installation system.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of main burner installation system dynamic characteristic measuring device, comprise the power sensor that is arranged on power hammer, be arranged on acceleration transducer on the main burner seat, be arranged on foil gauge group and signal analyzer on slay; Described acceleration transducer is connected to described signal analyzer by electric bridge signal processor, described power sensor by charge amplifier by load amplifier, described foil gauge group.
Further, described acceleration transducer is arranged on the main burner seat leading flank perpendicular to described slay swaying direction.
Further, described foil gauge group sticks on the root of described slay wefting insertion side extension, pastes direction along the reed width direction.
A kind of main burner installation system dynamic characteristic measuring method, by signal analyzer, signal is inputed to the power sensor that power is hammered into shape, after the power hammer knocks reed and slay, acceleration transducer on the main burner seat passes through charge amplifier by the foil gauge group on load amplifier, slay by electric bridge signal processor, described power sensor, export signal to described signal analyzer, signal analyzer shows output after with signal analysis and processing.
Further, described power is hammered the middle part of knocking reed beam on reed into shape.
Further, described power is hammered the bottom of knocking the slay fixed head into shape.
Further, between described fixed head and described slay, a cushion is set.
The beneficial effects of the utility model are:
1, measure curve and the performance plot of the frequency response function of main burner installation system, can try to achieve dynamic stiffness and the dynamic damping of system,, to improve the loom correlation parameter, improve kinetic stability, extend the serviceable life of main burner installation system parts.
2, power is hammered the bottom of knocking the slay fixed head into shape, and fixed head is between main burner seat and slay, and uneven dynamic loading is just by this part structure generation, and reed and slay be axis swing 12.5o centered by perpendicular line, and dynamic loading is mainly horizontal direction.
3, power is hammered the middle part of knocking reed beam on reed into shape, reed is service part, reed constructions is rendered as the narrow prolate body of reed width direction length and width degree direction, reed is flexible, it is as easy as rolling off a log vibrative elastic body, at first various vibrations occur on reed, and therefore, power hammer the second impact point is chosen on reed.
4, the main burner installation system is divided into two kinds, and a kind of is the connected mode of rigidity, and another kind is to settle a cushion between fixed head and slay, and two systems are measured respectively.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is main burner installation system structural representation;
Fig. 2 is acceleration transducer installation site and power hammer beating position schematic diagram;
Fig. 3 is foil gauge group installation site schematic diagram;
Fig. 4 is power hammer beating position schematic diagram;
Fig. 5 is the main burner installation system schematic diagram that cushion is set;
Fig. 6 is the acceleration transducer signals connection diagram;
Fig. 7 is foil gauge group signal connection diagram.
Number in the figure explanation: 1, power hammer, 10, the power sensor, 2, charge amplifier, 3, signal analyzer, 4, slay, 40, the foil gauge group, 41, the electric bridge signal processor, 5, reed, 50, upper reed beam, 6, the main burner seat, 60, acceleration transducer, 61, the load amplifier.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
With reference to Fig. 1, shown in Figure 3, a kind of main burner installation system dynamic characteristic measuring method and device thereof, comprise the power sensor 10 that is arranged on power hammer 1, be arranged on acceleration transducer 60 on main burner seat 6, be arranged on foil gauge group 40 and signal analyzer 3 on slay 4.
with reference to Fig. 6, shown in Figure 7, by signal analyzer 3, sinusoidal signal is inputed to power sensor 10 on power hammer 1, after power hammer 1 knocks reed 5 and slay 4, acceleration transducer 60 on main burner seat 6 is by load amplifier 61, foil gauge group 40 on slay 4 is by electric bridge signal processor 41, described power sensor 10 is by charge amplifier 2, export signal to described signal analyzer 3, signal analyzer 3 solves signal processing and analyzing software the invariance curve of two groups of signals, as Nai Kuasitetu, can be obtained dynamic stiffness and the dynamic damping of main burner installation system by Nai Kuasi Tequ line, with rise of rotational speed, dynamic stiffness increases, dynamic damping but reduces.
With reference to shown in Figure 2, described acceleration transducer 60 is arranged on main burner seat 6 leading flanks perpendicular to described slay 4 swaying directions.
With reference to shown in Figure 3, described foil gauge group 40 sticks on the root of described slay 4 wefting insertion side extensions, pastes direction along the reed width direction.
In measuring process, power hammer 1 impact point has 2 points:
Any is power hammer 1 bottom of knocking slay 4 fixed heads 7, with reference to shown in Figure 3, fixed head 7 is between main burner seat 6 and slay 4, and uneven dynamic loading is just by this part structure generation, reed 5 and slay 4 be axis swing 12.5o centered by perpendicular line, and dynamic loading is mainly horizontal direction.
On the other hand described power is hammered 1 middle part of knocking reed beam 50 on reed 5 into shape, with reference to shown in Figure 4, reed 5 is service parts, reed 5 structures are rendered as the narrow prolate body of reed width direction length and width degree direction, reed 5 is flexible, is as easy as rolling off a log vibrative elastic body, and at first various vibrations occur on reed 5, therefore, power hammer 1 second impact point is chosen on reed 5.
The main burner installation system is divided into two kinds, and a kind of is the connected mode of rigidity, and with reference to shown in Figure 2, another kind is that a cushion 70 is set between described fixed head 7 and described slay 4, and with reference to shown in Figure 5, two systems are measured respectively.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. main burner installation system dynamic characteristic measuring device is characterized in that: comprise the power sensor (10) that is arranged on power hammer (1), be arranged on acceleration transducer (60) on main burner seat (6), be arranged on foil gauge group (40) and signal analyzer (3) on slay (4); Described acceleration transducer (60) is connected to described signal analyzer (3) by electric bridge signal processor (41), described power sensor (10) by charge amplifier (2) by load amplifier (61), described foil gauge group (40).
2. main burner installation system dynamic characteristic measuring device according to claim 1, it is characterized in that: described acceleration transducer (60) is arranged on main burner seat (6) leading flank perpendicular to described slay (4) swaying direction.
3. main burner installation system dynamic characteristic measuring device according to claim 1, it is characterized in that: described foil gauge group (40) sticks on the root of described slay (4) wefting insertion side extension, pastes direction along the reed width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203166230U CN203298956U (en) | 2013-06-04 | 2013-06-04 | Measuring device for dynamic characteristic of main nozzle installation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203166230U CN203298956U (en) | 2013-06-04 | 2013-06-04 | Measuring device for dynamic characteristic of main nozzle installation system |
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| Publication Number | Publication Date |
|---|---|
| CN203298956U true CN203298956U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203166230U Expired - Fee Related CN203298956U (en) | 2013-06-04 | 2013-06-04 | Measuring device for dynamic characteristic of main nozzle installation system |
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| CN (1) | CN203298956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292988A (en) * | 2013-06-04 | 2013-09-11 | 江苏万工科技集团有限公司 | Dynamic behavior measuring method and device for main nozzle mounting system |
| CN115356068A (en) * | 2022-09-20 | 2022-11-18 | 中国联合重型燃气轮机技术有限公司 | A fixture device for modal test of combustion chamber nozzle |
-
2013
- 2013-06-04 CN CN2013203166230U patent/CN203298956U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292988A (en) * | 2013-06-04 | 2013-09-11 | 江苏万工科技集团有限公司 | Dynamic behavior measuring method and device for main nozzle mounting system |
| CN115356068A (en) * | 2022-09-20 | 2022-11-18 | 中国联合重型燃气轮机技术有限公司 | A fixture device for modal test of combustion chamber nozzle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140604 |