CN203250447U - A rotor-to-stator rub-impact acoustic emission experimental facility - Google Patents
A rotor-to-stator rub-impact acoustic emission experimental facility Download PDFInfo
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- CN203250447U CN203250447U CN 201320279983 CN201320279983U CN203250447U CN 203250447 U CN203250447 U CN 203250447U CN 201320279983 CN201320279983 CN 201320279983 CN 201320279983 U CN201320279983 U CN 201320279983U CN 203250447 U CN203250447 U CN 203250447U
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- acoustic emission
- armature spindle
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Abstract
The utility model discloses a rotor-to-stator rub-impact acoustic emission experimental facility comprising an experiment table, a stator unit, a rotor unit, and a driving motor. The stator unit comprises a support and a cylindrical stator. The rotor unit comprises a bearing pedestal assembly, a rotor shaft, and an elastic rub-impact screw assembly. The support and the bearing pedestal assembly are both fixed on the experiment table. A stator support is fixed on the support. The rotor shaft is fixed on the bearing pedestal assembly and one end of the rotor shaft is connected with the output shaft of the driving motor. The elastic rub-impact screw assembly is installed and fixed on the rotor shaft and is arranged along the radial direction of the rotor shaft. The elastic rub-impact screw assembly is disposed in the stator. The end portion of the elastic rub-impact screw assembly mutually contacts the inner wall of the stator. The rotor-to-stator rub-impact acoustic emission experimental facility has advantages of easy experimental operation, low experiment cost, a high confidence coefficient, a wide application range, and simple component manufacturing technique.
Description
Technical field
The utility model relates to the instruments used for education field, is specifically related to a kind of for the different Rotor/Stator Rub-Impact acoustic emission experiment devices that bump under the parameter of rubbing the impact that produces acoustic emission signal of demonstration.
Background technology
Acoustic emission detection is a kind of Dynamic Non-Destruction Measurement method, be that material or component inside structure or defective are in the process of motion change and carry out Non-Destructive Testing by the elastic wave of self sending, these characteristics of acoustic emission detection are other lossless detection methods such as its difference ultrasound wave, X ray, eddy current.Therefore acoustic emission testing technology has very large development space and application value with its unique superiority in the rotating machinery bump-scrape fault detect.Diagnosis mainly is to start with from vibration signal to Present Domestic to investigation of rotor rubbing faults, and it is few with application based on the theoretical research of the acoustic emission of bumping the generation that rubs, its acoustic emission signal of bumping the generation that rubs is normally studied by experiment and is drawn, analyze the experiment acoustic emission signal and analyze the accuracy of degree that bumping rubs occurs, type, location, and further instruct its theoretical research.Therefore how to realize a kind ofly for the different Rotor/Stator Rub-Impact acoustic emission experiment devices that bump under the parameter of rubbing the impact that produces acoustic emission signal of demonstration, become the technical matters that needs to be resolved hurrily.
The utility model content
The technical problems to be solved in the utility model provides that a kind of experimental implementation is simple, experimental expenses is low, safety factor is high, applied widely, the simple Rotor/Stator Rub-Impact acoustic emission experiment of part manufacturing process device.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of Rotor/Stator Rub-Impact acoustic emission experiment device, comprise experiment table, the stator unit, rotor unit and drive motor, described stator unit comprises bearing and is stator cylindraceous, described rotor unit comprises bearing block assembly, armature spindle and elastic collision mount screw assembly, described bearing, bearing block assembly all is fixed on the experiment table, described stator supporting is fixed on the bearing, described armature spindle is fixed on the bearing block assembly and an end links to each other with the output shaft of drive motor, described elastic collision mount screw assembly is mounted on the armature spindle and along the radial arrangement of armature spindle, described elastic collision mount screw assembly is located in the stator, and the end of described elastic collision mount screw assembly and the inwall of stator are in contact with one another.
As further improvement in the technical proposal:
Described elastic collision mount screw assembly comprises web joint, coupling bolt, upper connecting base and bump the mount screw head, described web joint is mounted on armature spindle, be provided with linear bearing in the described web joint, one end of described coupling bolt is inserted in the described linear bearing, the other end of described coupling bolt links to each other with upper connecting base, described upper connecting base is provided with threaded hole, the described mount screw head that bumps is mounted in the threaded hole by threaded engagement, be arranged with spring on the described coupling bolt, one end of described spring is conflicted on web joint, the other end of described spring is conflicted on upper connecting base, the end that described coupling bolt stretches out linear bearing is provided with stop nut, threaded engagement between described stop nut and the coupling bolt.
Described armature spindle is provided with a plurality of mounting discs, and described web joint is mounted in the mounting disc.
Described bearing block assembly comprises clutch shaft bearing seat and the second bearing seat that the gap is arranged, described armature spindle is fixed on clutch shaft bearing seat and the second bearing seat, and described mounting disc is arranged between clutch shaft bearing seat and the second bearing seat.
The output shaft of described drive motor is provided with shaft coupling, and the end of described armature spindle links to each other with the output shaft of drive motor by shaft coupling.
The utlity model has following advantage: the utility model comprises experiment table, the stator unit, rotor unit and drive motor, the stator unit comprises bearing and is stator cylindraceous, rotor unit comprises bearing block assembly, armature spindle and elastic collision mount screw assembly, bearing, bearing block assembly all is fixed on the experiment table, the stator supporting is fixed on the bearing, armature spindle is fixed on the bearing block assembly and an end links to each other with the output shaft of drive motor, elastic collision mount screw assembly is mounted on the armature spindle and along the radial arrangement of armature spindle, elastic collision mount screw assembly is located in the stator, and the end of elastic collision mount screw assembly and the inwall of stator are in contact with one another, the utility model is by the drive motor drives rotor shaft, armature spindle drives the end of elastic collision mount screw assembly and the inwall of stator bumps the generation acoustic emission signal of rubbing, thereby can be conveniently to different rubbing materials between the inwall of the end of acoustic emission signal and elastic collision mount screw assembly and stator, difference is bumped the contact shape that rubs, different impulsive forces and different relation of bumping the parameter roles such as gap that rub are carried out experimental demonstration, can be used in different rubbing materials, difference is bumped the contact shape that rubs, different impulsive forces and the different acoustic emission signal that produces under the parameter role such as the gap of rubbing of bumping are carried out collection analysis, thereby set up the corresponding relation of parameter and sound emission signal characteristic according to the data of collection analysis, has experimental implementation simple, experimental expenses is low, safety factor is high, applied widely, the simple advantage of part manufacturing process can be widely used in analysis and the research of Rotor/Stator Rub-Impact acoustic emission signal.
Description of drawings
Fig. 1 is the utility model embodiment one-piece construction schematic diagram.
Fig. 2 is the structural representation that the utility model embodiment Elastic bumps the mount screw assembly.
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.
Marginal data: 1, experiment table; 2, stator unit; 21, bearing; 22, stator; 3, rotor unit; 31, bearing block assembly; 311, clutch shaft bearing seat; 312, the second bearing seat; 32, armature spindle; 321, mounting disc; 33, elastic collision mount screw assembly; 331, web joint; 3311, linear bearing; 332, coupling bolt; 3321, stop nut; 3322, spring; 333, upper connecting base; 3331, threaded hole; 334, bump the mount screw head; 4, drive motor; 41, shaft coupling.
Embodiment
As shown in Figure 1, the Rotor/Stator Rub-Impact acoustic emission experiment device of the present embodiment comprises experiment table 1, stator unit 2, rotor unit 3 and drive motor 4, stator unit 2 comprises bearing 21 and is stator 22 cylindraceous, rotor unit 3 comprises bearing block assembly 31, armature spindle 32 and elastic collision mount screw assembly 33, bearing 21, bearing block assembly 31 all is fixed on the experiment table 1, stator 22 supportings are fixed on the bearing 21, armature spindle 32 is fixed on the bearing block assembly 31 and an end links to each other with the output shaft of drive motor 4, elastic collision mount screw assembly 33 is mounted on the armature spindle 32 and along the radial arrangement of armature spindle 32, elastic collision mount screw assembly 33 is located in the stator 22, and the inwall of the end of elastic collision mount screw assembly 33 and stator 22 is in contact with one another.The present embodiment is by drive motor 4 drives rotor shaft 32, armature spindle 32 drives the end of elastic collision mount screw assembly 33 and the inwall of stator 22 bumps the generation acoustic emission signal of rubbing, thereby can be conveniently to different rubbing materials between the inwall of the end of acoustic emission signal and elastic collision mount screw assembly 33 and stator 22, difference is bumped the contact shape that rubs, different impulsive forces and different relation of bumping the parameter roles such as gap that rub are carried out experimental demonstration, can be used in different rubbing materials, difference is bumped the contact shape that rubs, different impulsive forces and the different acoustic emission signal that produces under the parameter role such as the gap of rubbing of bumping are carried out collection analysis, thereby set up the corresponding relation of parameter and sound emission signal characteristic according to the data of collection analysis, has experimental implementation simple, experimental expenses is low, safety factor is high, applied widely, the simple advantage of part manufacturing process can be widely used in analysis and the research of Rotor/Stator Rub-Impact acoustic emission signal.
As shown in Figures 2 and 3, the present embodiment Elastic bumps mount screw assembly 33 and comprises web joint 331, coupling bolt 332, upper connecting base 333 and bump mount screw head 334, web joint 331 is mounted on armature spindle 32, be provided with linear bearing 3311 in the web joint 331, one end of coupling bolt 332 is inserted in the linear bearing 3311, the other end of coupling bolt 332 links to each other with upper connecting base 333, upper connecting base 333 is provided with threaded hole 3331, bumping mount screw head 334 is mounted in the threaded hole 3331 by threaded engagement, be arranged with spring 3322 on the coupling bolt 332, one end of spring 3322 is conflicted on web joint 331, the other end of spring 3322 is conflicted on upper connecting base 333, the end that coupling bolt 332 stretches out linear bearing 3311 is provided with stop nut 3321, threaded engagement between stop nut 3321 and the coupling bolt 332.The present embodiment passes through said structure, that can select unlike material bumps mount screw head 334, thereby bumping between the research unlike material rubbed on producing the impact of acoustic emission signal, and owing to bumping mount screw head 334 and be mounted in the threaded hole 3331 by bolt, bump the installation of mount screw head 334 and disassemble all very efficient and convenient and solid and reliable, and spring 3322 can and bump mount screw head 334 and play elastic acting force upper connecting base 333 in use, thereby remain big or small essentially identical acting force so that bump the inwall of mount screw head 334 and stator 22, the friction force of guaranteeing to bump between the inwall of mount screw head 334 and stator 22 is evenly constant, difference is bumped under the parameter of rubbing more accurate on the impact that produces acoustic emission signal; And can be by regulating stop nut 3321 and selecting length, the gap that rigidity limits rubbing and the size of bumping the impulsive force of rubbing of spring 3322, flexible and convenient to use.
In the present embodiment, armature spindle 32 is provided with a plurality of mounting discs 321, and web joint 331 is mounted in the mounting disc 321, so that armature spindle 32 is connected with installation between the elastic collision mount screw assembly 33 is more convenient, and also more solid and reliable.
In the present embodiment, bearing block assembly 31 comprises clutch shaft bearing seat 311 and the second bearing seat 312 that the gap is arranged, armature spindle 32 is fixed on clutch shaft bearing seat 311 and the second bearing seat 312, mounting disc 321 is arranged between clutch shaft bearing seat 311 and the second bearing seat 312, therefore the sound construction of armature spindle 32 is reliable, can guarantee that elastic collision mount screw assembly 33 bumps at the inwall with stator 22 that armature spindle 32 is not easy to misplace when rubbing, therefore so that the relation between the rotating speed of the acoustic emission signal that gathers and drive motor 4 is more precise and stable so that different bump under the parameter of rubbing more accurate on the impact of generation acoustic emission signal.
In the present embodiment, the output shaft of drive motor 4 is provided with shaft coupling 41, the end of armature spindle 32 links to each other with the output shaft of drive motor 4 by shaft coupling 41, and shaft coupling 41 mounts and dismounts very convenient so that the syndeton between armature spindle 32 and the drive motor 4 is simple.
The present embodiment can be used in that different rubbing materials, difference are bumped the contact shape that rubs, different impulsive force and the different acoustic emission signal that produces under the parameter role such as the gap of rubbing of bumping is carried out collection analysis, thereby sets up the corresponding relation of parameter and sound emission signal characteristic according to the data of collection analysis.Above experiment content can be divided into experiment collisional quenching experiment and friction damping experiment.Experimental procedure when using the present embodiment is:
(1) at first bearing 21 is bolted and is fixed on the experiment table 1.
(2) mount screw head 334 is bumped in installation, and the selected mount screw head 334 that bumps with certain material and contact shape is mounted on the upper connecting base 333 by threaded engagement; By regulating length, the gap that rigidity limits rubbing and the size of bumping the impulsive force of rubbing of stop nut 3321 and selection spring 3322; Again web joint 331 is bolted and is fixed in the mounting disc 321.
(3) open drive motor 4, armature spindle 32 drives the inwall that bumps mount screw head 334 and stator 22 and bumps and rub, and produces acoustic emission signal, and shows by signal test system, gathers and analysis.Can obtain specifying the acoustic emission signal that produces under mount screw head 334 and the quiet gap of appointment and the appointment impact force action of bumping of bumping the contact shape that rubs, specifying material by top test process.Repeat above-mentioned steps, can carry out signature analysis to the acoustic emission signal that produces under the above different parameters effect, can be widely used in experiment and the research of acoustic emission signal.
The above only is preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. Rotor/Stator Rub-Impact acoustic emission experiment device, it is characterized in that: comprise experiment table (1), stator unit (2), rotor unit (3) and drive motor (4), described stator unit (2) comprises bearing (21) and is stator cylindraceous (22), described rotor unit (3) comprises bearing block assembly (31), armature spindle (32) and elastic collision mount screw assembly (33), described bearing (21), bearing block assembly (31) all is fixed on the experiment table (1), described stator (22) supporting is fixed on the bearing (21), described armature spindle (32) is fixed in bearing block assembly (31) upward and an end links to each other with the output shaft of drive motor (4), it is upper and along the radial arrangement of armature spindle (32) that described elastic collision mount screw assembly (33) is mounted on armature spindle (32), described elastic collision mount screw assembly (33) is located in the stator (22), and the inwall of the end of described elastic collision mount screw assembly (33) and stator (22) is in contact with one another.
2. Rotor/Stator Rub-Impact acoustic emission experiment device according to claim 1, it is characterized in that: described elastic collision mount screw assembly (33) comprises web joint (331), coupling bolt (332), upper connecting base (333) and bump mount screw head (334), described web joint (331) is mounted on armature spindle (32), be provided with linear bearing (3311) in the described web joint (331), one end of described coupling bolt (332) is inserted in the described linear bearing (3311), the other end of described coupling bolt (332) links to each other with upper connecting base (333), described upper connecting base (333) is provided with threaded hole (3331), the described mount screw head (334) that bumps is mounted in the threaded hole (3331) by threaded engagement, be arranged with spring (3322) on the described coupling bolt (332), one end of described spring (3322) is conflicted on web joint (331), the other end of described spring (3322) is conflicted on upper connecting base (333), the end that described coupling bolt (332) stretches out linear bearing (3311) is provided with stop nut (3321), threaded engagement between described stop nut (3321) and the coupling bolt (332).
3. Rotor/Stator Rub-Impact acoustic emission experiment device according to claim 2, it is characterized in that: described armature spindle (32) is provided with a plurality of mounting discs (321), and described web joint (331) is mounted in the mounting disc (321).
4. Rotor/Stator Rub-Impact acoustic emission experiment device according to claim 3, it is characterized in that: described bearing block assembly (31) comprises clutch shaft bearing seat (311) and the second bearing seat (312) that the gap is arranged, described armature spindle (32) is fixed on clutch shaft bearing seat (311) and the second bearing seat (312), and described mounting disc (321) is arranged between clutch shaft bearing seat (311) and the second bearing seat (312).
5. Rotor/Stator Rub-Impact acoustic emission experiment device according to claim 4, it is characterized in that: the output shaft of described drive motor (4) is provided with shaft coupling (41), and the end of described armature spindle (32) links to each other with the output shaft of drive motor (4) by shaft coupling (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320279983 CN203250447U (en) | 2013-05-21 | 2013-05-21 | A rotor-to-stator rub-impact acoustic emission experimental facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320279983 CN203250447U (en) | 2013-05-21 | 2013-05-21 | A rotor-to-stator rub-impact acoustic emission experimental facility |
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| Publication Number | Publication Date |
|---|---|
| CN203250447U true CN203250447U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320279983 Expired - Fee Related CN203250447U (en) | 2013-05-21 | 2013-05-21 | A rotor-to-stator rub-impact acoustic emission experimental facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361177A (en) * | 2019-06-27 | 2019-10-22 | 天津大学 | Rubbing test device |
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2013
- 2013-05-21 CN CN 201320279983 patent/CN203250447U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361177A (en) * | 2019-06-27 | 2019-10-22 | 天津大学 | Rubbing test device |
| CN110361177B (en) * | 2019-06-27 | 2024-06-18 | 天津大学 | Friction experiment device |
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Legal Events
| 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: 20131023 Termination date: 20140521 |