CN102901612A - All-angle and distance-adjustable non-contact excitation experiment platform - Google Patents
All-angle and distance-adjustable non-contact excitation experiment platform Download PDFInfo
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- CN102901612A CN102901612A CN2012104246177A CN201210424617A CN102901612A CN 102901612 A CN102901612 A CN 102901612A CN 2012104246177 A CN2012104246177 A CN 2012104246177A CN 201210424617 A CN201210424617 A CN 201210424617A CN 102901612 A CN102901612 A CN 102901612A
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Abstract
The invention provides an all-angle and distance-adjustable non-contact excitation experiment platform, which comprises a base, an angle adjusting device, a connecting plate, a displacement adjusting device, a locating plate and a non-contact exciter. The connecting plate is movably mounted on the angle adjusting device; the displacement adjusting device is mounted on the connecting plate; and the non-contact exciter is mounted on the displacement adjusting device by the locating plate. According to the invention, the distance and the angle of the non-contact exciter are adjusted; according to the position of an excited part, the direction of the non-contact exciter is first adjusted and then the distance between the non-contact exciter and the excited part is adjusted, so that an optimal experiment effect is achieved, the authenticity and accuracy of experiment data are enhanced and scientific research and experimental requirements are satisfied.
Description
Technical field
The present invention relates to a kind of experimental provision, especially a kind of full angle and distance adjustable non-contact exciting experiment porch.
Background technology
Mechanical system vibration experiment platform is used for the analog mechanical parts at the residing environment of practical work process, it is used for many scientific experiments field, comprises vibration-resistant property test, failtests, vibration simulation analysis, fatigue experiment, material behavior test, fault diagnosis and life prediction etc. to all kinds of plant equipment.The at present commercially available and existing shaking table major part of all kinds of scientific research institutions is the contact shaking table, the excitational equipment of this class experiment porch usually need to be with transmitting bar and being energized parts and contacting to transmit accumulation signal, therefore, this class experiment porch mainly is applicable to fixed part is carried out the exciting experiment, is difficult to moving component is directly carried out the exciting experiment.
The non-contact exciting experiment porch is by regulating the size of electric current, change the size in magnetic field, and then changes and be energized the magnetic field force induced size of parts, is energized parts and vibrates under the magnetic field force effect that varies in size.At present, in the existing noncontact vibration test platform that carries out the exciting experiment for moving component, mainly have following problem: contactless vibrator is fixed installation, its installation site can't change flexibly according to the position of moving component, so causes vibrator and the distance that is energized between the parts can't accurately be regulated.When vibrator when being energized the hypotelorism of parts, easily cause vibrator directly to be adsorbed on and be energized on the parts, cause exciting experiment to interrupt, when vibrator and when being energized hypertelorism between parts, be energized the accumulation signal that parts receive poor, the exciting DeGrain.Above-mentioned two situations all can affect authenticity and the accuracy of experimental data, make the experimenter obtain correct experimental result according to experimental data.The fixed installation form of contactless vibrator only can be carried out the experiment of one direction exciting to being energized parts, can't carry out the experiment of full angle exciting, and the experimental data that obtains is single, can not satisfy the scientific research demand.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of full angle and distance adjustable non-contact exciting experiment porch, during experiment, according to being regulated by the position of exciting parts, and can carry out the experiment of full angle exciting to being energized parts.
The technical scheme that the present invention takes is:
Full angle and distance adjustable non-contact exciting experiment porch comprise base, angle regulator, web joint, displacement adjustment device, location-plate and contactless vibrator.Web joint is movable to be installed on the angle regulator, and displacement adjustment device is installed on the web joint, and contactless vibrator is installed on the displacement adjustment device by location-plate.
As preferably, displacement adjustment device comprises fixed block, movable block and screw mandrel, fixed block is fixedly mounted on the web joint, fixed block is provided with groove in the direction perpendicular to web joint, movable block is provided with a square nut that cooperates with screw mandrel, the square nut places the groove of fixed block along groove inwall moving linearly, and screw mandrel passes fixed block and the square nut is installed.
As preferably, location-plate is fixedly mounted on the movable block.
As preferably, angle regulator comprises rotary disk basement, index dial, clamping disk(-sc), set bolt and fishbolt.Rotary disk basement is fixedly mounted on the base by set bolt; It is circular that index dial is, and its internal diameter is greater than the diameter of clamping disk(-sc), and index dial and clamping disk(-sc) are fixedly mounted on the rotary disk basement, both axis coincidings; Space between index dial and clamping disk(-sc) forms circuit orbit.
As preferably, web joint is installed on the angle regulator by fishbolt, and an end inlay card of fishbolt is in circuit orbit.
As preferably, also be provided with the supporting seat that is energized parts for installation on the base.
The invention has the beneficial effects as follows:
1, the present invention adopts contactless vibrator to replace traditional contact vibrator, and accumulation signal does not need to transmit by transmitting bar, can not only carry out the exciting experiment to static parts, also can carry out to the parts of motion the exciting experiment.
2, angle regulator of the present invention makes the contactless vibrator can be according to being regulated by the position of exciting parts, and can to carried out the experiment of full angle exciting by the exciting parts, satisfy experiment, scientific research requirement.
3, displacement adjustment device of the present invention can be according to being regulated by the position of exciting parts, avoid contactless vibrator and by the distance between the exciting parts because crossing far away or crossing accuracy and the authenticity that recent photo rings experimental data.
Description of drawings
Fig. 1 is embodiment of the invention one-piece construction schematic diagram;
Fig. 2 is embodiment of the invention angle regulator schematic diagram;
Fig. 3 is embodiment of the invention displacement adjustment device schematic diagram;
Schematic diagram when Fig. 4 is embodiment of the invention application.
Among the figure, 1-base, 2-angle regulator, 21-rotary disk basement, the 22-index dial, 23-clamping disk(-sc), 24-circuit orbit, 25-set bolt, the 26-fishbolt, 3-web joint, 4-displacement adjustment device, 41-fixed block, the 411-groove, 42-movable block, 421-square nut, 43-screw mandrel, the 5-location-plate, the contactless vibrator of 6-, 7-is energized parts, the 8-transmission shaft, 9-supporting seat, the follow-up drive apparatus of 10-.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Such as figure, full angle and distance adjustable non-contact exciting experiment porch comprise base 1, angle regulator 2, web joint 3, displacement adjustment device 4, location-plate 5 and contactless vibrator 6.
In the present embodiment, when testing, experiment package is installed on the experiment table, transmission shaft 8 is installed on the supporting seat 9, and an end of transmission shaft 8 is installed and is energized parts 7, and the other end and follow-up drive apparatus 10 are installed.According to the position that is energized parts, unclamp fishbolt 26, be rotationally connected plate 3 to the normal direction of contactless vibrator 6 end faces with consistent by the required direction of excitation of exciting parts, by the angle that index dial 22 is observed rotation, fishbolt 26 is tightened after determining direction.Like this, displacement adjustment device 2 also rotates with the rotation of web joint 3 thereupon, and the direction that is fixed on the contactless vibrator 6 on the displacement adjustment device is also determined thereupon.
After determining the direction of contactless vibrator 6, with spanner or its instrument screw mandrel 43 is rotated again, it is mobile in the groove 411 of fixed block 41 that screw mandrel 43 rotarily drives movable block 42, movable block 42 drives and moves by location-plate 5 contactless vibrators 6 mounted thereto, and rotary screw rod makes contactless vibrator 6 and is energized distance between the parts for roughly suitable.In the present embodiment, contactless vibrator provides the face exciting, and its exciting area is that Radius is the circle of 10mm, and when the area that is energized parts 7 was enough large, the face exciting that contactless vibrator provides can be similar to regarded an exciting as.
After determining the position of contactless vibrator 6 according to the orientation that is energized parts 7, connect the operating circuit of contactless vibrator 6.The principle of work of contactless vibrator 6 operating circuits as shown in the figure, write signal function for exciting by related software on computers, this signal function is input in the signal generator, signal generator produces corresponding signal according to the signal function of input, the experimenter can check at the display screen of signal generator whether some basic parameters of signal are correct, confirm again this signal to be input in the power amplifier after errorless, signal just is input in the contactless vibrator 6 of the embodiment of the invention through after the power amplification, and contactless vibrator receives accumulation signal and just carries out the exciting experiment to being energized parts 7.
Under the exciting state, finely tune contactless vibrator 6 and by the distance of 7 of exciting parts, make to be optimum distance between the two, make experiment effect reach best.The screw mandrel of this experiment porch has auto-lock function, makes the situation that can not occur play behind its location positioning in the exciting experimentation, guarantees contactless vibrator 6 and constant by the distance of 7 of exciting parts.Simultaneously, each device of experiment porch forms by the high materials processing of rigidity, avoids each device to produce coupled vibrations when exciting is tested.
In the present embodiment, transmission shaft 8 is installed by supporting seat 9, is energized the end that parts 7 are installed in transmission shaft 8, the other end of transmission shaft 8 be connected drive apparatus 10 and connect.During experiment, follow-up drive apparatus 10 drives by transmission shaft 8 and is energized parts 7 rotations, simultaneously, is energized parts 7 and is subject to contactless vibrator 6 to its exciting, and transmission shaft can pass to follow up device with vibration again.This experiment porch can the motion state of skimulated motion parts when practical application obtain experimental data, and data are carried out analysis and modification to moving component by experiment, makes it satisfy user demand or reaches higher standard.
The embodiment of the invention can be regulated the direction of contactless vibrator and distance between the two according to the orientation that is energized parts, achieves best experiment distance, improves authenticity and the accuracy of experimental data, obtains correct experimental result.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (6)
1. full angle and distance adjustable non-contact exciting experiment porch is characterized in that: comprise base (1), angle regulator (2), web joint (3), displacement adjustment device (4), location-plate (5) and contactless vibrator (6); Described web joint (3) is movable to be installed on the angle regulator, and displacement adjustment device (4) is installed on the web joint (3), and contactless vibrator (6) is installed on the displacement adjustment device by location-plate (5).
2. full angle according to claim 1 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described displacement adjustment device (4) comprises fixed block (41), movable block (42) and screw mandrel (43), fixed block is fixedly mounted on the web joint (3), fixed block is provided with groove (411) in the direction perpendicular to web joint, movable block is provided with a square nut (421) that cooperates with screw mandrel, square nut (421) places the groove (411) of fixed block along groove inwall moving linearly, and screw mandrel (43) passes fixed block and the square nut is installed.
3. full angle according to claim 2 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described location-plate (5) is fixedly mounted on the movable block (42).
4. full angle according to claim 1 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described angle regulator (2) comprises rotary disk basement (21), index dial (22), clamping disk(-sc) (23), set bolt (25) and fishbolt (26), and described rotary disk basement (21) is fixedly mounted on the base (1) by set bolt (25); Described index dial (22) is circular, and its internal diameter is greater than the diameter of clamping disk(-sc) (23), and index dial and clamping disk(-sc) are fixedly mounted on the rotary disk basement (21), both axis coincidings; Circular void between index dial and clamping disk(-sc) forms circuit orbit (24).
5. full angle according to claim 4 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described web joint (3) is installed on the angle regulator (2) by fishbolt (26) is movable, and an end inlay card of fishbolt is in circuit orbit (24).
6. full angle according to claim 1 and distance adjustable non-contact exciting experiment porch is characterized in that: also be provided with the supporting seat (9) that is energized parts for installation on the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210424617.7A CN102901612B (en) | 2012-10-30 | 2012-10-30 | All-angle and distance-adjustable non-contact excitation experiment platform |
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| CN201210424617.7A CN102901612B (en) | 2012-10-30 | 2012-10-30 | All-angle and distance-adjustable non-contact excitation experiment platform |
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| CN102901612A true CN102901612A (en) | 2013-01-30 |
| CN102901612B CN102901612B (en) | 2014-11-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939296A (en) * | 2014-04-17 | 2014-07-23 | 浙江大学 | Offshore wind turbine simulation experiment device |
| CN104535283A (en) * | 2014-12-25 | 2015-04-22 | 温州职业技术学院 | Precise electronically-controlled non-contact excitation experimental platform |
| CN105149844A (en) * | 2015-09-23 | 2015-12-16 | 北京石油化工学院 | Fixture device for welding experiment |
| CN106033221A (en) * | 2015-03-19 | 2016-10-19 | 福建宁德核电有限公司 | Vibration type sensor calibrating system and angle adjusting device and method thereof |
| CN106706249A (en) * | 2015-11-18 | 2017-05-24 | 波音公司 | Positioner for electrodynamic shaker |
| CN111579748A (en) * | 2020-06-24 | 2020-08-25 | 大连理工大学 | Metal material performance parameter measuring device and method |
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| CN101936802A (en) * | 2010-07-27 | 2011-01-05 | 南昌大学 | New structural shock excitation experimental device |
| CN201819786U (en) * | 2010-07-27 | 2011-05-04 | 南昌大学 | Novel device for structural excitation test |
| CN102175412A (en) * | 2011-03-10 | 2011-09-07 | 上海交通大学 | Rotor torsion oscillation testing device and testing method thereof |
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| US3871210A (en) * | 1971-11-12 | 1975-03-18 | Hofmann Maschf Geb | Vibration testing apparatus with preload control |
| CN1043642A (en) * | 1989-12-24 | 1990-07-11 | 南京航空学院 | Chock-exciting method of electric eddy-magnetic push-pull and vibrator |
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| CN103939296A (en) * | 2014-04-17 | 2014-07-23 | 浙江大学 | Offshore wind turbine simulation experiment device |
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| CN106033221A (en) * | 2015-03-19 | 2016-10-19 | 福建宁德核电有限公司 | Vibration type sensor calibrating system and angle adjusting device and method thereof |
| CN106033221B (en) * | 2015-03-19 | 2019-05-31 | 福建宁德核电有限公司 | A kind of Vibratory transducer calibration system and its angle adjustment device and method |
| CN105149844A (en) * | 2015-09-23 | 2015-12-16 | 北京石油化工学院 | Fixture device for welding experiment |
| CN105149844B (en) * | 2015-09-23 | 2017-01-25 | 北京石油化工学院 | Fixture device for welding experiment |
| CN106706249A (en) * | 2015-11-18 | 2017-05-24 | 波音公司 | Positioner for electrodynamic shaker |
| CN106706249B (en) * | 2015-11-18 | 2020-06-05 | 波音公司 | Positioner for electric vibrator |
| CN111579748A (en) * | 2020-06-24 | 2020-08-25 | 大连理工大学 | Metal material performance parameter measuring device and method |
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|---|---|
| CN102901612B (en) | 2014-11-26 |
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