CN213632480U - Magnetic suction type ultrasonic bolt axial stress detection probe - Google Patents
Magnetic suction type ultrasonic bolt axial stress detection probe Download PDFInfo
- Publication number
- CN213632480U CN213632480U CN202022582416.2U CN202022582416U CN213632480U CN 213632480 U CN213632480 U CN 213632480U CN 202022582416 U CN202022582416 U CN 202022582416U CN 213632480 U CN213632480 U CN 213632480U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- shell
- probe
- axial stress
- ultrasonic probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a magnetic suction type ultrasonic bolt axial stress detection probe, which comprises an ultrasonic probe shell, wherein the ultrasonic probe shell is a hollow cylindrical body with an opening on the lower surface; a round hole is formed in the surface of the shell of the ultrasonic probe, and an ultrasonic cable connector penetrates through the round hole; the lower surface of the ultrasonic probe shell is connected with an annular magnet; the ultrasonic probe shell is internally filled with an insulating filling layer, a thimble is arranged in the insulating filling layer, and the middle probe of the ultrasonic cable joint is connected with the upper end of the thimble through a conducting wire. The device solves the technical problem that the repeated measurement precision of the existing ultrasonic bolt axial stress detection system is poor, has the stability of controllable coupling layer state, and can avoid the problem of poor precision caused by handheld operation.
Description
Technical Field
The utility model belongs to the technical field of bolt stress detects, concretely relates to formula supersound bolt axial stress test probe is inhaled to magnetism.
Background
Bolts serving as fasteners are widely applied to the fields of electric power, aerospace, bridge construction and the like, various bolt fasteners are adopted for valve sealing, and the size of axial fastening force of the bolts is scientifically controlled, so that the valve sealing has important significance for safe operation of equipment, prolonging of service life of the equipment and the like. The ultrasonic bolt axial stress detection system has the characteristics of simple structure, rapidness, convenience, high precision and the like, and has a good application prospect. However, when the existing ultrasonic bolt axial stress detection system detects the bolt axial force, an ultrasonic straight probe is mostly used as an ultrasonic excitation (receiving) sensor, but the ultrasonic bolt axial stress is sensitive to the placement position of the probe, and because the existing ultrasonic bolt axial stress detection system is measured by being held by an operator in the existing measurement process, the operator is difficult to ensure that the placement positions of the probes are consistent in the repeated measurement process, measurement errors are caused, and the existing ultrasonic bolt axial stress detection system has the technical problem of poor repeated measurement precision.
Disclosure of Invention
The utility model aims to solve the technical problem that a formula supersound bolt axial stress test probe is inhaled to magnetism is provided, the device has solved the poor technical problem of repeated measurement precision that current supersound bolt axial stress detecting system exists, has the stability of steerable coupling layer state, can avoid the poor problem of precision that handheld operation leads to.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a magnetic suction type ultrasonic bolt axial stress detection probe comprises an ultrasonic probe shell, wherein the ultrasonic probe shell is a hollow cylindrical body with an opening on the lower surface; a round hole is formed in the surface of the shell of the ultrasonic probe, and an ultrasonic cable connector penetrates through the round hole; the lower surface of the ultrasonic probe shell is connected with an annular magnet; the ultrasonic probe shell is internally filled with an insulating filling layer, a thimble is arranged in the insulating filling layer, and the middle probe of the ultrasonic cable joint is connected with the upper end of the thimble through a conducting wire.
Preferably, the ultrasonic cable connector is one of Q, Q, C, SMA standard interfaces.
Preferably, conductive adhesive is filled between the ultrasonic cable joint shell and the ultrasonic probe shell.
Preferably, the diameter of the shell of the ultrasonic probe is larger than or equal to the outer diameter of the tested bolt; the shell of the ultrasonic probe is made of conductive materials, and can be made of aluminum alloy, stainless steel and the like.
Preferably, the height of the bottom end of the thimble is equal to or lower than the height of the bottom surface of the shell of the ultrasonic probe.
Preferably, the axis of the thimble coincides with the axis of the shell of the ultrasonic probe; the bottom end of the thimble is in contact fit with the piezoelectric wafer on the upper surface of the tested bolt.
Preferably, the piezoelectric wafer can be a piezoelectric ceramic wafer.
Preferably, the upper surface of the annular magnet is adhered to the shell of the ultrasonic probe through conductive adhesive; the lower surface of the annular magnet is provided with an annular groove.
Preferably, the lower surface of the annular magnet is provided with an adjusting magnet with an annular structure, and the upper surface of the adjusting magnet is provided with an annular fixture block which is in magnetic connection with the annular groove; the height of the adjusting magnet and the inner diameter of the bottom surface are set according to actual requirements so as to adapt to bolts of different sizes.
Preferably, the insulating filling layer can be made of epoxy resin, thermosetting adhesive and the like.
The utility model provides a formula supersound bolt axial stress test probe is inhaled to magnetism's beneficial effect as follows:
(1) the device is simple to operate in the use process, the magnetic force is absorbed on the surface of the bolt to be detected, the manual fixation of an operator is not needed, the working strength of the operator can be reduced, and the use efficiency can be improved;
(2) the magnetic-type ultrasonic bolt axial stress detection probe provided by the device is matched with a bolt to be detected in a magnetic adsorption mode, so that the vibration or pressure change can be avoided in the measurement process, and the contact position and the contact stress are similar in repeated measurement; therefore, the stability of the state of the coupling layer can be controlled, and the technical problem of poor repeated measurement precision when the conventional ultrasonic bolt axial stress detection system is fixed in a handheld mode can be solved;
(3) the adjusting magnet is additionally arranged below the annular magnet at the bottom of the device, so that the device body can be matched with bolts with different diameters by replacing the adjusting magnets with different bottom surface inner diameters, and the application range of the device is improved; through changing the adjusting magnet of different thickness, can be used for adjusting the thimble for the amount that stretches out of device bottom surface to guarantee the measuring demand of device adaptation different model bolts, avoid the thimble too stretch out lead to with the piezoelectric wafer between the too big damage thimble of stress or piezoelectric wafer.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention suitable for a standard diameter bolt.
Fig. 2 is a schematic structural view of the present invention suitable for a bolt with a smaller diameter.
Fig. 3 is a schematic structural view of the bolt with a larger diameter of the present invention.
Fig. 4 is a schematic diagram of the external structure of the present invention.
Fig. 5 is a schematic diagram of a piezoelectric wafer on the surface of the bolt to be tested according to the present invention.
Fig. 6 is a schematic diagram of the present invention connected to the tested bolt in a matching manner.
The reference numbers in the figures are: the ultrasonic probe comprises an ultrasonic probe shell 1, an ultrasonic cable connector 2, an insulating filling layer 3, a thimble 4, an annular magnet 5, an annular groove 51, a regulating magnet 52, a piezoelectric wafer 6 and a tested bolt 7.
Detailed Description
As shown in fig. 1 to 6, a magnetic-type ultrasonic bolt axial stress detection probe comprises an ultrasonic probe shell 1, wherein the ultrasonic probe shell 1 is a hollow cylindrical body with an opening on the lower surface; a round hole is formed in the surface of the ultrasonic probe shell 1, and an ultrasonic cable connector 2 penetrates through the round hole; the lower surface of the ultrasonic probe shell 1 is connected with an annular magnet 5; the inside packing of ultrasonic probe shell 1 has insulating filling layer 3, is provided with thimble 4 in the insulating filling layer 3, and the middle probe of supersound cable joint 2 passes through the wire and is connected with thimble 4 upper end.
Preferably, the ultrasound cable connector 2 is one of Q, Q, C, SMA standard interfaces.
Preferably, conductive adhesive is filled between the shell of the ultrasonic cable connector 2 and the shell 1 of the ultrasonic probe.
Preferably, the diameter of the ultrasonic probe shell 1 is larger than or equal to the outer diameter of the tested bolt 7; the ultrasonic probe shell 1 is made of conductive materials, and can be made of aluminum alloy, stainless steel and the like.
Preferably, the height of the bottom end of the thimble 4 is equal to or lower than the height of the bottom surface of the ultrasonic probe shell 1.
Preferably, the axis of the thimble 4 coincides with the axis of the ultrasonic probe shell 1; the bottom end of the thimble 4 is contacted and matched with the piezoelectric chip 6 on the upper surface of the tested bolt 7.
Preferably, the piezoelectric wafer 6 can be a piezoelectric ceramic wafer.
Preferably, the upper surface of the ring magnet 5 is adhered to the ultrasonic probe shell 1 through conductive adhesive; the lower surface of the ring magnet 5 is provided with a ring-shaped groove 51.
Preferably, the lower surface of the ring magnet 5 is provided with an adjusting magnet 52 with a ring structure, and the upper surface of the adjusting magnet 52 is provided with a ring-shaped fixture block which is in magnetic connection with the ring-shaped groove 51; the height of the adjusting magnet 52 and the inner diameter of the bottom surface are set according to actual requirements so as to adapt to bolts with different sizes.
Preferably, the insulating filling layer 3 can be made of epoxy resin, thermosetting adhesive, or the like.
The working principle of the magnetic-type ultrasonic bolt axial stress detection probe is as follows:
arranging a connection piezoelectric wafer 6 on the upper surface of the tested bolt 7, and then selecting a proper adjusting bolt according to the diameter of the tested bolt 7 and the size of the piezoelectric wafer 6 to enable the bottom end of the ultrasonic probe shell 1 to be matched with the diameter of the tested bolt 7; the thimble 4 is contacted and matched with the piezoelectric wafer 6; then the ultrasonic cable connector 2 is connected into a testing device for axial stress detection.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (8)
1. The utility model provides a formula supersound bolt axial stress test probe is inhaled to magnetism which characterized in that: the ultrasonic probe comprises an ultrasonic probe shell (1), wherein the ultrasonic probe shell (1) is a hollow cylindrical body with an opening on the lower surface; a round hole is formed in the surface of the ultrasonic probe shell (1), and an ultrasonic cable connector (2) penetrates through the round hole; the lower surface of the ultrasonic probe shell (1) is connected with an annular magnet (5); an insulating filling layer (3) is filled in the ultrasonic probe shell (1), a thimble (4) is arranged in the insulating filling layer (3), and a middle probe of the ultrasonic cable joint (2) is connected with the upper end of the thimble (4) through a lead.
2. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the ultrasonic cable connector (2) is selected from one of Q6, Q9, C9 and SMA standard interfaces.
3. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: conductive adhesive is filled between the shell of the ultrasonic cable connector (2) and the shell of the ultrasonic probe (1).
4. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the diameter of the ultrasonic probe shell (1) is larger than or equal to the outer diameter of the tested bolt (7); the shell (1) of the ultrasonic probe is made of conductive materials.
5. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the height of the bottom end of the thimble (4) is equal to or lower than that of the bottom surface of the ultrasonic probe shell (1).
6. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the axis of the thimble (4) is superposed with the axis of the ultrasonic probe shell (1); the bottom end of the thimble (4) is contacted and matched with the piezoelectric chip (6) on the upper surface of the tested bolt (7).
7. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the upper surface of the annular magnet (5) is adhered to the ultrasonic probe shell (1) through conductive adhesive; the lower surface of the annular magnet (5) is provided with an annular groove (51).
8. The magnetic ultrasonic bolt axial stress detection probe of claim 1, characterized in that: the lower surface of the annular magnet (5) is provided with an adjusting magnet (52) with an annular structure, and the upper surface of the adjusting magnet (52) is provided with an annular clamping block which is in magnetic connection with the annular groove (51); the height of the adjusting magnet (52) and the inner diameter of the bottom surface are set according to actual requirements so as to adapt to bolts with different sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022582416.2U CN213632480U (en) | 2020-11-10 | 2020-11-10 | Magnetic suction type ultrasonic bolt axial stress detection probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022582416.2U CN213632480U (en) | 2020-11-10 | 2020-11-10 | Magnetic suction type ultrasonic bolt axial stress detection probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213632480U true CN213632480U (en) | 2021-07-06 |
Family
ID=76631704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022582416.2U Active CN213632480U (en) | 2020-11-10 | 2020-11-10 | Magnetic suction type ultrasonic bolt axial stress detection probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213632480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916422A (en) * | 2021-09-29 | 2022-01-11 | 航天精工股份有限公司 | Insulation shielding structure used in processing of hollow fastener ultrasonic sensor |
-
2020
- 2020-11-10 CN CN202022582416.2U patent/CN213632480U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916422A (en) * | 2021-09-29 | 2022-01-11 | 航天精工股份有限公司 | Insulation shielding structure used in processing of hollow fastener ultrasonic sensor |
| CN113916422B (en) * | 2021-09-29 | 2023-09-12 | 航天精工股份有限公司 | Insulation shielding structure for hollow fastener ultrasonic sensor processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213632480U (en) | Magnetic suction type ultrasonic bolt axial stress detection probe | |
| CN202562456U (en) | Dry-coupling torsional-mode magnetostrictive transducer | |
| CN107991014A (en) | A kind of torsional high strength threaded bolt jiont fastener shaft force checking device | |
| CN205353009U (en) | Place supersound guided wave transducer that detecting tube was said in can in | |
| CN106401628A (en) | Tightness degree test anchor rod and tightness degree test system | |
| CN208704940U (en) | It is a kind of for testing the fixation device of the ultrasonic sensor of bolt pretightening | |
| CN102801014B (en) | Connector socket used for eddy current testing device | |
| CN104931176A (en) | Piezoelectric type three jaw chuck clamping force measurement device | |
| CN209745733U (en) | resonance system capable of realizing multi-axis ultrasonic fatigue test | |
| CN207751625U (en) | A kind of torsional high strength threaded bolt jiont fastener shaft force checking device | |
| US20150167662A1 (en) | Systems and methods for determining mechanical stress of a compressor | |
| CN212410258U (en) | Test pressure head and sensor | |
| CN213874098U (en) | Detection tool for detecting tooth crest diameter of inner gear ring | |
| CN212031248U (en) | Ultra-temperature high-pressure core holder | |
| CN1789996A (en) | Ring-disk electrode | |
| CN209745449U (en) | Ultrasonic wave bolt stress measuring instrument | |
| CN206788110U (en) | A kind of plane probe | |
| CN209069487U (en) | Ceramic pressure sensor for fire-fighting pressure switch | |
| CN209911491U (en) | Detection tool for partial discharge contact type ultrasonic detection of power transformation equipment | |
| CN109632471A (en) | A kind of novel pulling force experiment machine fixture | |
| CN213874845U (en) | Leakage test fixture of miniature feed-through connector | |
| CN2746391Y (en) | Ring-disc electrode body | |
| CN208366715U (en) | A kind of novel flexible fixture suitable for the measurement of root system tension | |
| CN109827539A (en) | It is a kind of for straining the fixture of meter calibrating | |
| CN218865825U (en) | Flexible probe for detecting and monitoring potential matrix defect surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |