CN111060597A - Controllable excitation device for acoustic vibration detection - Google Patents
Controllable excitation device for acoustic vibration detection Download PDFInfo
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- CN111060597A CN111060597A CN202010022088.2A CN202010022088A CN111060597A CN 111060597 A CN111060597 A CN 111060597A CN 202010022088 A CN202010022088 A CN 202010022088A CN 111060597 A CN111060597 A CN 111060597A
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- slide
- clamp
- acoustic vibration
- vibration detection
- shaped clamp
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- 230000005284 excitation Effects 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
Abstract
The invention discloses a controllable excitation device for acoustic vibration detection, belongs to the technical field of acoustic vibration detection, and aims to solve the problems that the traditional detection method generally adopts a knocking mode to apply excitation, and the excitation strength is difficult to control. The supporting base is provided with a supporting rod, one end of the clamping device is arranged on the supporting rod and can slide up and down along the supporting rod, the other end of the clamping device is connected with the rotating clamp, the slide clamp is rotatably arranged on the rotating clamp through a connecting rod, a disc is arranged on one side, close to the slide clamp, of the rotating clamp, the slide is arranged on the slide clamp, and the exciting small ball is arranged in the slide through a positioning pin. The controllable excitation device for acoustic vibration detection can realize quantitative control on the excitation strength, angle and excitation point, and improve the efficiency and accuracy of detecting the acoustic vibration performance of the material.
Description
Technical Field
The invention relates to an excitation device, in particular to a controllable excitation device for acoustic vibration detection, and belongs to the technical field of acoustic vibration detection.
Background
Acoustic vibration detection is a mature detection method, and is now widely used in the scientific research field and industrial production. In the acoustic vibration detection experiment, the application of excitation is an essential element. The traditional method generally adopts a knocking mode to apply excitation, and manually uses a force hammer, a blade or a small batten to knock a to-be-tested piece so as to meet the requirement of vibration detection, but the method has great limitations, namely, the excitation force is not easy to control, and the force of knocking every time is different; secondly, continuous impact and long knocking contact time can occur due to the operation problem of a detector during excitation, so that the result is greatly influenced; and thirdly, the excitation drop point and the excitation direction cannot be controlled, so that the excitation drop point at the same position of the test piece every time cannot be ensured, and the excitation direction is the same every time. These limitations not only do not allow effective control of the excitation, but also adversely affect the results of the vibration test, and therefore, to obtain more accurate vibration test results, the conventional methods have a greater challenge to the human technique.
Disclosure of Invention
The invention aims to provide a controllable excitation device for acoustic vibration detection, which aims to solve the problems that the traditional detection method generally adopts a knocking mode to apply excitation, the excitation strength is not easy to control, and the strength of each knocking is different; the phenomenon of overlong continuous impact and knocking contact time can occur due to the operation problem of a detector during excitation, so that the result is greatly influenced; the excitation drop point and the excitation direction can not be controlled, and the excitation drop point can not be ensured to be at the same position of the test piece every time, and the excitation direction is the same every time.
A controllable excitation device for acoustic vibration detection comprises a supporting base, a supporting rod, a clamping device, a positioning pin, an excitation ball, a disc, a slideway clamp, a rotating clamp and a slideway;
the supporting base is provided with a supporting rod, one end of the clamping device is arranged on the supporting rod and can slide up and down along the supporting rod, the other end of the clamping device is connected with the rotating clamp, the slide clamp is rotatably arranged on the rotating clamp through a connecting rod, a disc is arranged on one side, close to the slide clamp, of the rotating clamp, the slide is arranged on the slide clamp, and the exciting small ball is arranged in the slide through a positioning pin.
Preferably: the clamping device comprises a first U-shaped clamp, a fixing bolt and a connecting support column, the supporting rod is located in a U-shaped groove of the first U-shaped clamp, the first U-shaped clamp is fastened on the supporting rod through the fixing bolt, the connecting support column is arranged on one side opposite to the fixing bolt, one end of the connecting support column is fixedly connected with the first U-shaped clamp, and the other end of the connecting support column is connected with the rotating clamp.
Preferably: the rotating clamp comprises a clamping bolt and a second U-shaped clamp, a fixed insertion hole is formed in the side wall of one side of the second U-shaped clamp, the clamping bolt is arranged on the side wall of the other side of the second U-shaped clamp, the connecting rod is fixed in a U-shaped groove of the second U-shaped clamp through the clamping bolt and can rotate in the U-shaped groove, and the other end of the connecting support is in threaded connection with the fixed insertion hole.
Preferably: the slide rail clamp comprises a third U-shaped clamp, a threaded hole is formed in one side of the third U-shaped clamp, a slide rail is arranged in a U-shaped groove of the third U-shaped clamp, the tail end of the connecting rod is in threaded connection with the threaded hole, and the connecting rod penetrates through the threaded hole to abut against the outer wall of the slide rail.
Preferably: the support rod is provided with scale marks, the range of the scale marks is 0 cm-80 cm, the disc is provided with angle scale marks, and the range of the angle scale marks is 0-180 degrees.
Preferably: the slide is a semicircular pipe, the inner wall of the semicircular pipe is provided with a socket, and the positioning pin is inserted into the socket.
Compared with the existing product, the invention has the following effects:
the detection device can realize quantitative control on the excitation force and the excitation direction during detection each time as long as the material and the quality of the excitation small ball are fixed and the inclination angle and the height of the slide way are fixed. And the occurrence of continuous impact phenomenon during knocking is avoided, the device has the characteristics of simple structure, convenience in operation and low requirement on operators, and meanwhile, the efficiency and the accuracy of detecting the acoustic vibration performance of the material are improved.
Drawings
FIG. 1 is a schematic diagram of a controllable excitation device for acoustic vibration detection;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic view of the structure of the clamping device;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a side view of FIG. 4;
FIG. 7 is a schematic view of the structure of the slide clamp;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic view of the structure of the slide clamp;
FIG. 10 is a schematic view of a rotary jig;
FIG. 11 is a top view of FIG. 10;
fig. 12 is a right side view of fig. 10.
In the figure: 1-supporting base, 2-supporting rod, 3-clamping device, 4-positioning pin, 5-exciting small ball, 6-disc, 7-slideway clamp, 8-rotating clamp and 9-slideway.
Detailed Description
Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 12, the controllable excitation device for acoustic vibration detection according to the present invention includes a support base 1, a support rod 2, a clamping device 3, a positioning pin 4, an excitation ball 5, a disk 6, a slide clamp 7, a rotating clamp 8, and a slide 9;
the supporting base 1 is provided with a supporting rod 2, one end of a clamping device 3 is arranged on the supporting rod 2 and can slide up and down along the supporting rod 2, the other end of the clamping device 3 is connected with a rotating clamp 8, a slide clamp 7 is rotatably arranged on the rotating clamp 8 through a connecting rod, one side of the rotating clamp 8, which is close to the slide clamp 7, is provided with a disc 6, a slide 9 is arranged on the slide clamp 7, and an excitation small ball 5 is arranged in the slide 9 through a positioning pin 4.
Further: the clamping device 3 comprises a first U-shaped clamp 3-1, a fixing bolt 3-2 and a connecting support column 3-3, the supporting rod 2 is located in a U-shaped groove of the first U-shaped clamp 3-1, the first U-shaped clamp 3-1 is fastened on the supporting rod 2 through the fixing bolt 3-2, the connecting support column 3-3 is arranged on one side opposite to the fixing bolt 3-2, one end of the connecting support column 3-3 is fixedly connected with the first U-shaped clamp 3-1, and the other end of the connecting support column 3-3 is connected with a rotating clamp 8.
Further: the rotary clamp 8 comprises a clamping bolt 8-1 and a second U-shaped clamp 8-3, a fixed insertion hole 8-2 is formed in the side wall of one side of the second U-shaped clamp 8-3, the clamping bolt 8-1 is arranged on the side wall of the other side of the second U-shaped clamp 8-3, the connecting rod is fixed in the U-shaped groove of the second U-shaped clamp 8-3 through the clamping bolt 8-1 and can rotate in the U-shaped groove, and the other end of the connecting support 3-3 is in threaded connection with the fixed insertion hole 8-2.
Further: the slide rail clamp 7 comprises a third U-shaped clamp 7-2, a threaded hole 7-1 is formed in one side of the third U-shaped clamp 7-2, a slide rail 9 is arranged in a U-shaped groove of the third U-shaped clamp 7-2, the tail end of the connecting rod is in threaded connection with the threaded hole 7-1, and the connecting rod penetrates through the threaded hole 7-1 to abut against the outer wall of the slide rail 9.
Further: the support rod 2 is provided with scale marks, the range of the scale marks is 0 cm-80 cm, the disc 6 is provided with angle scale marks, and the range of the angle scale marks is 0-180 degrees.
Further: the slideway 9 is a semicircular pipe, the inner wall of the semicircular pipe is provided with a socket, and the positioning pin 4 is inserted into the socket.
When detecting the acoustic vibration of the material, an operator firstly adjusts the corresponding scales of the clamping device 3 and the rotating device 8, the position of the slide way 9 and the mass of the excitation small ball 5; the small excitation ball 5 is placed at the position of the positioning pin 4 of the slideway 9, the small excitation ball 5 is freely slid after the positioning pin 4 is pulled out, and when the small excitation ball 5 excites the tested piece, an operator catches the small excitation ball 5 by hand to prevent the small excitation ball 5 from contacting the tested piece again.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (6)
1. A controllable excitation device for acoustic vibration detection, characterized by: comprises a supporting base (1), a supporting rod (2), a clamping device (3), a positioning pin (4), an excitation small ball (5), a disc (6), a slideway clamp (7), a rotating clamp (8) and a slideway (9);
be equipped with bracing piece (2) on supporting base (1), the one end setting of clamping device (3) is on bracing piece (2), and can follow bracing piece (2) and slide from top to bottom, the other end of clamping device (3) is connected with rotation anchor clamps (8), slide anchor clamps (7) rotate through a connecting rod and set up on rotation anchor clamps (8), one side that rotation anchor clamps (8) are close to slide anchor clamps (7) is equipped with disc (6), slide (9) set up on slide anchor clamps (7), encourage bobble (5) to set up in slide (9) through locating pin (4).
2. A controllable excitation device for acoustic vibration detection as claimed in claim 1, wherein: the clamping device (3) comprises a first U-shaped clamp (3-1), a fixing bolt (3-2) and a connecting support column (3-3), the supporting rod (2) is located in a U-shaped groove of the first U-shaped clamp (3-1), the first U-shaped clamp (3-1) is fastened on the supporting rod (2) through the fixing bolt (3-2), the connecting support column (3-3) is arranged on one side opposite to the fixing bolt (3-2), one end of the connecting support column (3-3) is fixedly connected with the first U-shaped clamp (3-1), and the other end of the connecting support column (3-3) is connected with a rotating clamp (8).
3. A controllable excitation means for acoustic vibration detection as claimed in claim 2, wherein: the rotary clamp (8) comprises a clamping bolt (8-1) and a second U-shaped clamp (8-3), a fixed insertion hole (8-2) is formed in the side wall of one side of the second U-shaped clamp (8-3), the clamping bolt (8-1) is arranged on the side wall of the other side of the second U-shaped clamp (8-3), the connecting rod is fixed in the U-shaped groove of the second U-shaped clamp (8-3) through the clamping bolt (8-1) and can rotate in the U-shaped groove, and the other end of the connecting support (3-3) is in threaded connection with the fixed insertion hole (8-2).
4. A controllable excitation device for acoustic vibration detection as claimed in claim 3, wherein: the slide clamp (7) comprises a third U-shaped clamp (7-2), a threaded hole (7-1) is formed in one side of the third U-shaped clamp (7-2), a slide (9) is arranged in a U-shaped groove of the third U-shaped clamp (7-2), the tail end of the connecting rod is in threaded connection with the threaded hole (7-1), and the connecting rod penetrates through the threaded hole (7-1) to abut against the outer wall of the slide (9).
5. A controllable excitation device for acoustic vibration detection as claimed in claim 1, wherein: the support rod (2) is provided with scale marks, the range of the scale marks is 0 cm-80 cm, the disc (6) is provided with angle scale marks, and the range of the angle scale marks is 0-180 degrees.
6. A controllable excitation device for acoustic vibration detection as claimed in claim 1, wherein: the slide way (9) is a semicircular pipe, the inner wall of the semicircular pipe is provided with a socket, and the positioning pin (4) is inserted into the socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022088.2A CN111060597A (en) | 2020-01-09 | 2020-01-09 | Controllable excitation device for acoustic vibration detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022088.2A CN111060597A (en) | 2020-01-09 | 2020-01-09 | Controllable excitation device for acoustic vibration detection |
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| Publication Number | Publication Date |
|---|---|
| CN111060597A true CN111060597A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010022088.2A Pending CN111060597A (en) | 2020-01-09 | 2020-01-09 | Controllable excitation device for acoustic vibration detection |
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| CN (1) | CN111060597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230194476A1 (en) * | 2021-12-20 | 2023-06-22 | Pliteq Inc. | Acoustic measurement apparatus, kit, and method of use thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680573A (en) * | 2012-05-07 | 2012-09-19 | 刘镇波 | Timber vibration property tester based on uniform force knocking method |
| CN102692458A (en) * | 2012-06-20 | 2012-09-26 | 东北林业大学 | Wood and wood composite material nondestructive testing excitation device based on uniform force knocking method |
| CN203405990U (en) * | 2013-09-10 | 2014-01-22 | 北京威成亚实验室设备有限公司 | Projectile motion tester |
| CN203414441U (en) * | 2013-09-11 | 2014-01-29 | 东北林业大学 | Detection device based on wood acoustic radiation intensity |
| EP2913638A1 (en) * | 2014-02-28 | 2015-09-02 | Fuji Jukogyo Kabushiki Kaisha | Vibration detection apparatus and vibration detection method |
| CN206573601U (en) * | 2017-01-18 | 2017-10-20 | 陈洙颖 | A kind of physical experiment table for being used to measure acceleration |
| CN208239474U (en) * | 2018-05-23 | 2018-12-14 | 成都师范学院 | A kind of Physical Experiment physical speed test device |
| CN211318313U (en) * | 2020-01-09 | 2020-08-21 | 东北林业大学 | Controllable excitation device for acoustic vibration detection |
-
2020
- 2020-01-09 CN CN202010022088.2A patent/CN111060597A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680573A (en) * | 2012-05-07 | 2012-09-19 | 刘镇波 | Timber vibration property tester based on uniform force knocking method |
| CN102692458A (en) * | 2012-06-20 | 2012-09-26 | 东北林业大学 | Wood and wood composite material nondestructive testing excitation device based on uniform force knocking method |
| CN203405990U (en) * | 2013-09-10 | 2014-01-22 | 北京威成亚实验室设备有限公司 | Projectile motion tester |
| CN203414441U (en) * | 2013-09-11 | 2014-01-29 | 东北林业大学 | Detection device based on wood acoustic radiation intensity |
| EP2913638A1 (en) * | 2014-02-28 | 2015-09-02 | Fuji Jukogyo Kabushiki Kaisha | Vibration detection apparatus and vibration detection method |
| CN206573601U (en) * | 2017-01-18 | 2017-10-20 | 陈洙颖 | A kind of physical experiment table for being used to measure acceleration |
| CN208239474U (en) * | 2018-05-23 | 2018-12-14 | 成都师范学院 | A kind of Physical Experiment physical speed test device |
| CN211318313U (en) * | 2020-01-09 | 2020-08-21 | 东北林业大学 | Controllable excitation device for acoustic vibration detection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230194476A1 (en) * | 2021-12-20 | 2023-06-22 | Pliteq Inc. | Acoustic measurement apparatus, kit, and method of use thereof |
| US11906467B2 (en) * | 2021-12-20 | 2024-02-20 | Pliteq Inc. | Acoustic measurement apparatus, kit, and method of use thereof |
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