CN2849711Y - Internal hole defect prestress-sound transmitting integrated detector - Google Patents
Internal hole defect prestress-sound transmitting integrated detector Download PDFInfo
- Publication number
- CN2849711Y CN2849711Y CN 200520200834 CN200520200834U CN2849711Y CN 2849711 Y CN2849711 Y CN 2849711Y CN 200520200834 CN200520200834 CN 200520200834 CN 200520200834 U CN200520200834 U CN 200520200834U CN 2849711 Y CN2849711 Y CN 2849711Y
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- China
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- friction material
- sound transmitting
- internal hole
- sensor
- utility
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to an internal hole defect prestress-sound transmitting integrated detector which belongs to the technical field of the defects of a radial load applying and a sound transmitting integrated detecting internal hole components. The utility model is composed of a radial elastic loading device, a friction material inlaid with a sensor, a sound transmitting sensor and a clamping device, wherein the sound transmitting sensor is firmly fixed on the friction material. When the radial elastic loading device is expanded to act on an internal hole, as long as the surface coating of the internal hole generates defects, sound transmitting signals can be generated, and same, when the radial elastic loading device is expanded to act on the internal hole and is axially moved under the action of the clamping device of the friction material, as long as the coating and a basal body are insufficiently combined, the internal stress of the coating leads to crack generation under an operating state, etc., the sound transmitting signals can also be generated. The utility model adopts the sound transmitting sensor to detect the information of crack generation and expansion so as to have no damage to qualified reproducing products as well as detect the defects of a primary stage. The utility model is suitable for the detecting field of the coating defects, the cracks, etc. of the internal hole.
Description
Technical field
The utility model belongs to radial load and applies and the integrated detection inner hole part of acoustic emission defective technical field.
Background technology
At present, endoporus processing, particularly combine the deficiency, coating internal stress between the internal coating that make to obtain again defective that may exist and coating and the matrix causes cracking under the duty etc., and these defectives all have significant effects to the reliability and the security of the work that manufactures a product again.And these problems can't be accomplished Non-Destructive Testing by traditional method detection method.The utility model is to utilize the resilient radial loading technique at first to make endoporus receive enough big differential expansion stress, and stack tangential motion, bring out the defective in the coating, adopt calibrate AE sensor to detect the information that crackle produces and expands simultaneously, accomplish neither to damage qualified manufacturing a product again, do not omit defective again.
Summary of the invention
The purpose of this utility model just provides a kind ofly can survey the inner hole defect prestress-sound reflection integrated detection equipment that little inner hole part is made the surface coating combination property again.
Design of the present utility model provides a kind of bore area that is applicable to and loads contact and the force application mechanism that comprises normal load and circumferential load, be referred to as mechanics probing needle, load rank and friction factor are variable on a large scale, judge coating surface, inside and defect state at the interface, for the Nondestructive Evaluation of inner hole part coating provides multidate information.
Solution of the present utility model is: a kind of inner hole defect prestress-sound reflection integrated detection equipment and method, constitute by resilient radial charger 11, friction material 5, friction material clamping device 10 and friction material sensor 6, resilient radial charger 11 usefulness friction material clamping devices 10 are connected with friction material 5, and friction material sensor 6 is embedded on the friction material 5.
Friction material sensor 6 is 1-12.
Friction material sensor 6 is calibrate AE sensors.
The disc shape lever of resilient radial charger 11 acts on the inside surface of friction material 5, and is radially outside;
Friction material sensor 6 is embedded in the inside or the outside of friction material 5;
Fluid pressure type axial load applicator 14 has been installed at the two ends of friction material clamping device 10,, has promoted whole measuring system respectively from two ends and produce shuttle axially-movable, and produce friction force with Parts Surface Coating material 12 by the effect of hydraulic pressure.
The method of using a kind of inner hole defect prestress-sound reflection integrated detection equipment to detect, when resilient radial charger 11 applies power in endoporus, in the propagation process of power, internal coating inner or crack at the interface and crack propagation process in, can audible signal emit; With the increase of putting forth effort, the intensity of signal and density improve, and up to fracture, produce the strongest signal; Receive acoustic emission signal by the friction material sensor 6 that is fixed in the friction material 5,, judge the degree of impairment of coating material according to the intensity and the density of acoustic emission signal.
The beneficial effect that the utility model reached is:
(1) design and prepare and a kind ofly be applicable to that the bore area normal direction loads and tangential contact and the force application mechanism that loads, be referred to as mechanics probing needle, load rank and friction factor are variable on a large scale, but do not damage the bore area quality.This mechanics probing needle is used to simulate the operating load parameter of inner hole part; The size of load needs to set critical parameters according to concrete object.
(2) according to the relation between the characteristic parameter of the acoustic emission signal that receives and load, the types of coatings, can judge coating surface, inside and defect state at the interface, for the Nondestructive Evaluation that manufactures a product again provides multidate information;
(3) under the effect of mechanics probing needle, various defectives are in the state of amplification, make the easier discovery of other nondestructiving detecting means, improve the reliability and stability that detect, for example Ultrasonic Detection;
(4) by integrated to same probe sensors such as mechanics probing needle, acoustic emission information, Ultrasonic Detection, be prepared into little endoporus multifunction integrated sensor, equipment set is little, and is portable, and Measuring Time is lacked, and can equip condition of battlefield downward moving manufacturing platform again.Also can be equipped on the laboratory as the quick evaluation means in the re-manufacturing technology performance history;
(5) designed each part, the device structure that comes out is simple in the utility model, volume is little, be convenient to operation, cost is low, it is wide to be easy to expand.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a resilient radial charger enlarged diagram of the present utility model.
Wherein, 1. nut, 2. disk spring, 3. locating sleeve, 4. disc shape lever, 5. friction material, 6. friction material sensor, 7. resilient radial charger sensor, 8. elasticity screw rod, 9. positioning key, 10. friction material clamping device, 11. resilient radial chargers, 12. Parts Surface Coating materials, 13. tube wall, 14. axial load applicators.
Embodiment
Nut 1 external diameter is that 40mm, endoporus are the M16mm screw thread, nut 1 screw thread and elasticity screw rod 8 masthead portion threaded engagement;
Nut 1 bottom and external diameter be 56mm, internal diameter be 28.5mm, wall thickness be 3mm, highly for 4.3mm, maximum displacement are that the external diameter that 1.3mm, maximum are carried as disk spring 2 junctions of 11400N is 28.5mm, the height of junction boss is 5mm;
The spacer flanger external diameter of locating sleeve 3 is that 35mm, thickness are 5mm, and median pore diameter is 16mm, and upper and lower end connecting portion external diameter is respectively 28.5mm and 24mm, and upper and lower side connecting portion boss height is 5mm.
The a pair of external diameter that is equal to disc shape lever 4 is that 96mm, internal diameter are 24mm, thickness t=3mm, base angle θ=30 degree; Begin along radially disc shape lever 4 joint-cuttings and along circumference 36 five equilibriums from cylindrical, the length of joint-cutting is 25mm;
The length of elasticity screw rod 8 is 80mm, and median pore diameter is 16mm, and the end flange diameter is 97mm, and thickness is 8mm;
Resilient radial charger sensor 7 adopts foil gauge;
Nut 1, disk spring 2, locating sleeve 3, disc shape lever 4 are enclosed within on the elasticity screw rod 8 successively.Positioning key 9 is fixing with elasticity screw rod 8.
Press right-handed screw direction rotation nut 1, distance reduces between nut 1 and elasticity screw rod 8 end flange, disk spring 2 and disc shape lever 4 is applied axle pressure, by disc shape lever 4, axial force is converted into the power of being radially expanded, and the size of radial force is 3.464 times of axial force.
The size of axial force is measured by foil gauge, and the effect of disk spring 2 is to make entire mechanism that enough elasticity be arranged.
Reverse rotation nut 1, the distance between nut 1 and elastic link 8 end flange increases, thus relief pressure.
By the rotation amount of control nut 1, come the size of control loaded power.
In loading procedure, constantly rotate nut, then can obtain dynamic load.
Inner diameter d=the 96mm of friction material 5, outer diameter D=116mm, thickness h=5mm;
The radial force of resilient radial charger 11 acts on the friction material 5 by disc shape lever 4, makes 5 pairs of Parts Surface Coating materials 12 of friction material, tube wall 13 produce pressure;
Calibrate AE sensor 6 sends out acoustic emission signal;
The axially-movable of friction material clamping device 10 drives resilient radial charger 11, friction material 5 axially-movables;
According to the relation between the characteristic parameter of the acoustic emission signal that receives and load, the types of coatings, can judge coating surface, inside and defect state at the interface, for the Nondestructive Evaluation that manufactures a product again provides multidate information.
At first demarcate this device, determine the safety load harmony transmit signal strength and the density critical value of qualified coating according to the standard sample that has prepared.Then normal sample is tested, if the intensity of acoustic emission signal or density surpass critical value under the safety load that applies, then coating is a substandard product.
Claims (3)
1. inner hole defect prestress-sound reflection integrated detection equipment, it is characterized in that, constitute by resilient radial charger (11), friction material (5), friction material clamping device (10) and friction material sensor (6), resilient radial charger (11) is connected with friction material (5) with friction material clamping device (10), and friction material sensor (6) is embedded on the friction material (5).
2. a kind of inner hole defect prestress-sound reflection integrated detection equipment according to claim 1 is characterized in that, friction material sensor (6) is 1-12.
3. according to claim 1,2 described a kind of inner hole defect prestress-sound reflection integrated detection equipments, it is characterized in that friction material sensor (6) is a calibrate AE sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200834 CN2849711Y (en) | 2005-12-19 | 2005-12-19 | Internal hole defect prestress-sound transmitting integrated detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200834 CN2849711Y (en) | 2005-12-19 | 2005-12-19 | Internal hole defect prestress-sound transmitting integrated detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849711Y true CN2849711Y (en) | 2006-12-20 |
Family
ID=37522196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200834 Expired - Fee Related CN2849711Y (en) | 2005-12-19 | 2005-12-19 | Internal hole defect prestress-sound transmitting integrated detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849711Y (en) |
-
2005
- 2005-12-19 CN CN 200520200834 patent/CN2849711Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |