CN117168676B - Method and device for detecting screw shaft force by ultrasonic wave - Google Patents
Method and device for detecting screw shaft force by ultrasonic wave Download PDFInfo
- Publication number
- CN117168676B CN117168676B CN202311453366.XA CN202311453366A CN117168676B CN 117168676 B CN117168676 B CN 117168676B CN 202311453366 A CN202311453366 A CN 202311453366A CN 117168676 B CN117168676 B CN 117168676B
- Authority
- CN
- China
- Prior art keywords
- ultrasonic wave
- screw
- detected
- ultrasonic
- maximum amplitude
- 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
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012887 quadratic function Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 abstract description 10
- 230000008859 change Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention discloses a method and a device for detecting screw shaft force by ultrasonic wave, wherein the method is applied to an ultrasonic wave receiving part, and the ultrasonic wave receiving part and an ultrasonic wave transmitting part corresponding to the ultrasonic wave receiving part are arranged on two sides of a nut corresponding to a screw to be detected; the method comprises the following steps: receiving ultrasonic pulses which are emitted by the ultrasonic emission component and pass through the screw to be detected; identifying a maximum amplitude of the direct wave in the received ultrasonic pulse; and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave. By implementing the invention, the accuracy and the implementation efficiency of axial force detection can be improved.
Description
Technical Field
The invention relates to the technical field of ultrasonic detection, in particular to a method and a device for detecting screw shaft force by ultrasonic waves.
Background
Large-scale steel structures such as suspension bridges, steel bridges, high-voltage towers and fans adopt a large number of Gao Zhouli screws for component connection, and the structure is very critical for maintaining the long-term use function and the safety performance of the structure. The long-term action of the reciprocating load easily causes the conditions of loosening of the nut, decline of the axial force of the screw rod member, and the like, and leads to decline of the load transmission capacity of the whole structure, deviation of the stress system of the structure from the normal design state, and finally, the whole structure may be unstable or damaged. Therefore, the detection of the screw shaft force system has great significance for maintaining the normal service condition of the structure.
At present, the engineering world mainly adopts an ultrasonic echo pair measurement method to detect the axial force of a screw rod, wherein an ultrasonic probe is embedded at one end of the screw rod, after an initial value of the ultrasonic wave speed is tested, the influence of the axial force on the initial ultrasonic wave speed is detected, and then the change of the axial force is determined according to the change of the ultrasonic wave speed; however, the change of the axial force has small influence on the ultrasonic wave velocity, and the ultrasonic wave velocity change caused by screwing and loosening the nut is not obvious, so that a certain deviation exists between the estimated screw axial force result and a true value inevitably, the axial (tensile direction) pushing screw along with time can generate metal material creep, and the axial force calculation can generate larger error by adopting the relationship between the originally calibrated ultrasonic sound and the stress. In addition, the method requires a severe processing length of the screw rod piece, which also results in high detection cost and difficulty in realizing high-proportion spot inspection.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting screw shaft force by ultrasonic waves, which can improve the accuracy and the implementation efficiency of screw shaft force detection.
An embodiment of the present invention provides a method for ultrasonically detecting a screw shaft force, including: the ultrasonic wave detection device is applied to the ultrasonic wave receiving part, and the ultrasonic wave receiving part and the ultrasonic wave transmitting part corresponding to the ultrasonic wave receiving part are arranged on two sides of the nut corresponding to the screw to be detected;
the method comprises the following steps:
receiving ultrasonic pulses which are emitted by the ultrasonic emission component and pass through the screw to be detected;
identifying a maximum amplitude of the direct wave in the received ultrasonic pulse;
and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
Further, the determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve;
wherein the discriminant curve is constructed by:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Further, the determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function;
wherein the determining of the quadratic function comprises:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Further, the centroid of the ultrasonic wave transmitting part, the centroid of the ultrasonic wave receiving part and the centroid of the screw to be detected are in the same straight line.
On the basis of the method item embodiments, the invention correspondingly provides device item embodiments;
an embodiment of the present invention correspondingly provides an apparatus for ultrasonically detecting a screw shaft force, including: the ultrasonic wave receiving component and the ultrasonic wave transmitting component corresponding to the ultrasonic wave receiving component are arranged on two sides of the nut corresponding to the screw to be detected;
the ultrasonic wave transmitting component is used for transmitting ultrasonic wave pulses to the screw to be detected;
the ultrasonic wave receiving component is used for receiving the ultrasonic wave pulse which is transmitted by the ultrasonic wave transmitting component and passes through the screw to be detected, and identifying the maximum amplitude of the direct wave in the received ultrasonic wave pulse; and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
Further, the ultrasonic receiving part determines an axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave, and includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve;
wherein the discriminant curve is constructed by:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Further, the ultrasonic receiving part determines an axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave, and includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function;
wherein the determining of the quadratic function comprises:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Further, the centroid of the ultrasonic wave transmitting part, the centroid of the ultrasonic wave receiving part and the centroid of the screw to be detected are in the same straight line.
The invention has the following beneficial effects: the invention provides a method and a device for detecting screw shaft force by ultrasonic wave, wherein the method is applied to an ultrasonic wave receiving part, and the ultrasonic wave receiving part and an ultrasonic wave transmitting part corresponding to the ultrasonic wave receiving part are arranged on two sides of a nut corresponding to a screw to be detected; determining a corresponding screw shaft force by receiving ultrasonic pulses transmitted by the ultrasonic transmitting part and passing through the screw to be detected, and identifying the maximum amplitude in the ultrasonic pulses; when the nut on the screw is screwed, the direct wave in the ultrasonic energy received by the ultrasonic receiving component occupies larger proportion, and the amplitude of the direct wave is larger; when the nut on the screw is unscrewed, diffuse reflection waves in the ultrasonic energy received by the ultrasonic receiving component occupy more and the amplitude of the diffuse reflection waves is smaller; therefore, the maximum amplitude of the direct wave in the ultrasonic pulse received by the ultrasonic receiving component can reflect the duty ratio of the received direct wave and the diffuse reflection wave, and then the current screw shaft force is determined; the screw shaft force is determined by detecting the maximum amplitude of the direct wave, compared with the prior art, which detects the change of the ultrasonic wave speed, the screw shaft force is determined, and the amplitude is more sensitive to the change of the shaft force relative to the wave speed, so that the detected shaft force is more accurate, and the accuracy of the screw shaft force detection is improved.
Furthermore, when the screw shaft force is detected, the ultrasonic wave transmitting component and the ultrasonic wave receiving component are only required to be arranged on two sides of the nut corresponding to the screw to be detected, and the detection device is not required to be buried in the screw.
Drawings
Fig. 1 is a schematic structural view of a conventional ultrasonic testing apparatus according to an embodiment of the present invention.
Fig. 2 is a flow chart of a method for detecting axial force by ultrasonic waves according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of an apparatus for detecting axial force by using ultrasonic waves according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an ultrasonic axial force detection according to an embodiment of the present invention.
Fig. 5 is a schematic diagram showing the relationship between the amplitude and time of the direct wave and the diffuse reflection wave contained in the received ultrasonic wave according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of an axial force versus direct wave amplitude relationship according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a schematic structural diagram of an apparatus used in a conventional method for ultrasonically detecting a screw shaft force is shown; in the traditional ultrasonic detection method, an ultrasonic probe is embedded at one end of a screw rod, and the axial force of the screw rod is judged by measuring the propagation time of ultrasonic waves in the screw rod. With this method, the required equipment is complex and occupies the installation space of the screw. And an initial value of the ultrasonic wave velocity needs to be tested to determine the change of the ultrasonic wave velocity; because the influence of the axial force on the ultrasonic wave speed is small, the change of the ultrasonic wave speed caused by screwing and unscrewing the nut is not obvious, the ultrasonic wave speed needs to be accurately measured, and the method for detecting the screw axial force is complex and has low accuracy.
In order to solve the problems of the prior art, as shown in fig. 2, the method for detecting the axial force of a screw by using ultrasonic waves is provided in an embodiment of the present invention, and the method is applied to an ultrasonic receiving component, wherein the ultrasonic receiving component and an ultrasonic transmitting component corresponding to the ultrasonic receiving component are installed at two sides of a nut corresponding to a screw to be detected;
the method comprises the following steps:
step S1: receiving ultrasonic pulses which are emitted by the ultrasonic emission component and pass through the screw to be detected;
step S2: identifying a maximum amplitude of the direct wave in the received ultrasonic pulse;
step S3: and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
As shown in fig. 3, the structure of the ultrasonic receiving component and the ultrasonic transmitting component provided by the invention is that two sides of a nut corresponding to a screw to be detected are installed;
in step S1, the ultrasonic wave transmitting means transmits an ultrasonic wave pulse to the ultrasonic wave receiving means, and the transmitted ultrasonic wave pulse is received by the ultrasonic wave receiving means after passing through a nut fixed to the screw.
In a preferred embodiment, the centroid of the ultrasonic wave transmitting member, the centroid of the ultrasonic wave receiving member and the centroid of the screw to be inspected are collinear.
Specifically, the ultrasonic transmitting component and the ultrasonic receiving component used in the invention are generally required to be installed on two sides of the nut corresponding to the screw to be detected in pairs when detecting the axial force of the screw to be detected, and in order to ensure that the ultrasonic transmission path is not influenced by the installation position, preferably, the centroid of the ultrasonic transmitting component, the centroid of the ultrasonic receiving component and the centroid of the screw to be detected are in the same straight line when installing the ultrasonic transmitting component and the ultrasonic receiving component. Further, on the basis of ensuring that the centroids of the above components are in the same straight line, the ultrasonic wave transmitting component and the ultrasonic wave receiving component are mounted on a pair of parallel side surfaces of the nut by adopting a surface coupling agent, so that the ultrasonic wave transmitting component is tightly attached to the nut, the ultrasonic wave receiving component is tightly attached to the nut, and the final mounting effect is shown in fig. 3.
It should be noted that the structure of the nut is generally a regular hexagonal structure including six sides, i.e., three pairs of parallel sides, as shown in fig. 3.
The invention adopts the split ultrasonic wave transmitting component and the ultrasonic wave receiving component, does not need to be arranged in the screw rod, does not occupy the volume of the screw rod, and is convenient to install and convenient to detect.
After receiving the pulse, the ultrasonic wave receiving unit recognizes the maximum amplitude of the received ultrasonic pulse in step S2.
When the ultrasonic wave receiving part receives the ultrasonic wave, namely, the energy of the ultrasonic wave is received; the direct wave and the diffuse reflected wave contained in the energy are identified by the received ultrasonic energy. Preferably, the determination of the direct wave can also be determined by the following two ways: on the one hand, the direct wave can be identified through the wave speed of the received ultrasonic wave and the propagation distance of the ultrasonic wave; on the other hand, the direct wave can be determined according to the time range of the direct wave; because the wave speed of the direct wave is fast, when the direct wave and the diffuse reflection wave contained in the received ultrasonic wave are identified, the time range of the direct wave can be calculated according to the screw parameters such as the size, the material and the like of the screw to be detected, then the direct wave is determined according to the time range, and the diffuse reflection wave is generated after the time range of the direct wave.
The propagation path of the ultrasonic wave when the screw is loosened and the propagation path of the ultrasonic wave when the screw is tightened are shown in fig. 4; the larger the diffuse reflection wave energy is when the screw is loose, the larger the direct wave energy is when the screw is tight; the higher the energy of the direct wave, the tighter the screw and the greater the axial force.
When the ultrasonic wave transmitting unit transmits an ultrasonic wave pulse to the ultrasonic wave receiving unit, the ultrasonic wave pulse propagates through two paths of the direct wave and the diffuse reflection wave according to the difference in tightness of the screw rod detected between the ultrasonic wave transmitting unit and the ultrasonic wave receiving unit, and the wave velocity of the direct wave is faster than that of the diffuse reflection wave. In the propagation process, the larger the axial force of the screw is, the larger the direct wave ratio is, and the smaller the diffuse reflection wave ratio is, among the waves received by the ultrasonic wave receiving member.
As shown in fig. 5, when ultrasonic energy is received, the amplitude of the direct wave is large, and the amplitude of the diffuse reflected wave is small, so that the axial force of the screw can be determined from the maximum amplitude of the direct wave in the received ultrasonic pulse.
And for the step S3, determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
In a preferred embodiment, the determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave includes: determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve; wherein the discriminant curve is constructed by: the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
In another preferred embodiment, the determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave includes: determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function; wherein the determining of the quadratic function comprises: the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Specifically, after the maximum amplitude of the direct wave is determined, the magnitude of the axial force corresponding to the screw to be detected can be determined according to the maximum amplitude; the invention provides two applicable determination methods, namely, one is determined by fitting a curve, and the other is determined by a quadratic function.
Before the ultrasonic transmitting component and the ultrasonic receiving component detect the actual axial force, the axial force is fixed, the maximum amplitude of the direct wave received by the ultrasonic receiving component under the fixed axial force is detected, corresponding data between a plurality of axial forces and the maximum amplitude can be obtained by measuring the maximum amplitude of the direct wave under a series of axial forces, and then a quadratic function or a discriminant curve is determined according to the corresponding relation of the data between each axial force and the maximum amplitude of the direct wave. For example: the screws were sequentially subjected to axial forces of 0, 20%, 40%, 60%, 80%, 100%, 120% of the designed axial force. The nut is screwed after each axial force is applied, the device is installed, ultrasonic signals are transmitted and received, the amplitude of the direct wave is identified, the peak value of the direct wave signal measured under the axial force value of the screw is recorded, all the values are fitted into a graph to obtain a discrimination curve, or a corresponding quadratic function is generated according to all the values; the direct discrimination curve of the amplitude of the direct wave and the axial force is shown in fig. 6.
On the basis of the method, the invention also provides a device for detecting the screw shaft force by ultrasonic waves, which comprises the following steps: the ultrasonic wave receiving component and the ultrasonic wave transmitting component corresponding to the ultrasonic wave receiving component are arranged on two sides of the nut corresponding to the screw to be detected;
the ultrasonic wave transmitting component is used for transmitting ultrasonic wave pulses to the screw to be detected;
the ultrasonic wave receiving component is used for receiving the ultrasonic wave pulse which is transmitted by the ultrasonic wave transmitting component and passes through the screw to be detected, and identifying the maximum amplitude of the direct wave in the received ultrasonic wave pulse; and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
In a preferred embodiment, the ultrasonic wave receiving unit determines the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave, and includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve;
wherein the discriminant curve is constructed by:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
In a preferred embodiment, the ultrasonic wave receiving unit determines the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave, and includes:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function;
wherein the determining of the quadratic function comprises:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
In a preferred embodiment, the centroid of the ultrasonic wave transmitting member, the centroid of the ultrasonic wave receiving member and the centroid of the screw to be inspected are collinear.
It should be noted that the above-described apparatus embodiments are merely illustrative, and the units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the embodiment of the device provided by the invention, the connection relation between the modules represents that the modules have communication connection, and can be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
It will be clear to those skilled in the art that, for convenience and brevity, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (6)
1. The method for detecting the screw shaft force by using the ultrasonic wave is characterized by being applied to an ultrasonic wave receiving component, wherein the ultrasonic wave receiving component and an ultrasonic wave transmitting component corresponding to the ultrasonic wave receiving component are arranged on two sides of a nut corresponding to a screw to be detected; the ultrasonic wave transmitting component and the nut are tightly attached, and the ultrasonic wave receiving component and the nut are tightly attached;
the method comprises the following steps:
receiving ultrasonic pulses which are emitted by the ultrasonic emission component and pass through the screw to be detected;
identifying a maximum amplitude of the direct wave in the received ultrasonic pulse;
and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
2. The method for ultrasonically detecting a screw shaft force according to claim 1, wherein said determining the shaft force corresponding to the screw to be detected based on the maximum amplitude of the direct wave comprises:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve;
wherein the discriminant curve is constructed by:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
3. The method for ultrasonically detecting a screw shaft force according to claim 1, wherein said determining the shaft force corresponding to the screw to be detected based on the maximum amplitude of the direct wave comprises:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function;
wherein the determining of the quadratic function comprises:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
4. An apparatus for ultrasonically detecting a screw shaft force, comprising: the ultrasonic wave receiving component and the ultrasonic wave transmitting component corresponding to the ultrasonic wave receiving component are arranged on two sides of the nut corresponding to the screw to be detected; the ultrasonic wave transmitting component and the nut are tightly attached, and the ultrasonic wave receiving component and the nut are tightly attached;
the ultrasonic wave transmitting component is used for transmitting ultrasonic wave pulses to the screw to be detected;
the ultrasonic wave receiving component is used for receiving the ultrasonic wave pulse which is transmitted by the ultrasonic wave transmitting component and passes through the screw to be detected, and identifying the maximum amplitude of the direct wave in the received ultrasonic wave pulse; and determining the axial force corresponding to the screw to be detected according to the maximum amplitude of the direct wave.
5. The apparatus for ultrasonically detecting a screw shaft force according to claim 4, wherein the ultrasonic receiving means for determining the shaft force corresponding to the screw to be detected based on the maximum amplitude of the direct wave comprises:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset discrimination curve;
wherein the discriminant curve is constructed by:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by adopting the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the discrimination curve is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
6. The apparatus for ultrasonically detecting a screw shaft force according to claim 4, wherein the ultrasonic receiving means for determining the shaft force corresponding to the screw to be detected based on the maximum amplitude of the direct wave comprises:
determining the axial force corresponding to the screw to be detected when the maximum amplitude is determined according to a preset quadratic function;
wherein the determining of the quadratic function comprises:
the maximum amplitudes identified by the ultrasonic wave receiving parts under a plurality of known screw shaft forces are detected by the ultrasonic wave transmitting parts and the ultrasonic wave receiving parts respectively, and the quadratic function is generated according to the maximum amplitudes identified under the known screw shaft forces and the corresponding shaft forces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453366.XA CN117168676B (en) | 2023-11-03 | 2023-11-03 | Method and device for detecting screw shaft force by ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453366.XA CN117168676B (en) | 2023-11-03 | 2023-11-03 | Method and device for detecting screw shaft force by ultrasonic wave |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117168676A CN117168676A (en) | 2023-12-05 |
| CN117168676B true CN117168676B (en) | 2024-02-02 |
Family
ID=88947320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311453366.XA Active CN117168676B (en) | 2023-11-03 | 2023-11-03 | Method and device for detecting screw shaft force by ultrasonic wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117168676B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748031A (en) * | 2017-09-14 | 2018-03-02 | 中铁大桥科学研究院有限公司 | A kind of cord clip of suspension bridge screw rod axle power detection servicing unit and detection method |
| CN110375900A (en) * | 2019-04-29 | 2019-10-25 | 长江大学 | A kind of method and system using ultrasonic coda wave energy quantitative assessment bolt-connection state |
| CN111623910A (en) * | 2020-05-25 | 2020-09-04 | 中铁大桥科学研究院有限公司 | Suspension bridge cable clamp screw axial force identification method based on ultrasonic echo envelope modeling |
| CN113176031A (en) * | 2021-04-30 | 2021-07-27 | 中车青岛四方机车车辆股份有限公司 | Bolt pretightening force monitoring equipment, method and device |
| CN116296053A (en) * | 2022-12-02 | 2023-06-23 | 内蒙古电力(集团)有限责任公司 | Method and system for generating longitudinal wave virtual calibration curve in ultrasonic bolt pretightening force measurement |
| CN116858415A (en) * | 2023-07-05 | 2023-10-10 | 大唐水电科学技术研究院有限公司 | Real-time axial force monitoring method during high-strength bolt fastening |
| CN116929624A (en) * | 2023-09-19 | 2023-10-24 | 广州市市政工程试验检测有限公司 | Bolt shaft force monitoring device, method, equipment and medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230213401A1 (en) * | 2020-05-28 | 2023-07-06 | Fdh Infrastructure Services, Llc | Determining residual tension in threaded fasteners |
-
2023
- 2023-11-03 CN CN202311453366.XA patent/CN117168676B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748031A (en) * | 2017-09-14 | 2018-03-02 | 中铁大桥科学研究院有限公司 | A kind of cord clip of suspension bridge screw rod axle power detection servicing unit and detection method |
| CN110375900A (en) * | 2019-04-29 | 2019-10-25 | 长江大学 | A kind of method and system using ultrasonic coda wave energy quantitative assessment bolt-connection state |
| CN111623910A (en) * | 2020-05-25 | 2020-09-04 | 中铁大桥科学研究院有限公司 | Suspension bridge cable clamp screw axial force identification method based on ultrasonic echo envelope modeling |
| CN113176031A (en) * | 2021-04-30 | 2021-07-27 | 中车青岛四方机车车辆股份有限公司 | Bolt pretightening force monitoring equipment, method and device |
| CN116296053A (en) * | 2022-12-02 | 2023-06-23 | 内蒙古电力(集团)有限责任公司 | Method and system for generating longitudinal wave virtual calibration curve in ultrasonic bolt pretightening force measurement |
| CN116858415A (en) * | 2023-07-05 | 2023-10-10 | 大唐水电科学技术研究院有限公司 | Real-time axial force monitoring method during high-strength bolt fastening |
| CN116929624A (en) * | 2023-09-19 | 2023-10-24 | 广州市市政工程试验检测有限公司 | Bolt shaft force monitoring device, method, equipment and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117168676A (en) | 2023-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6968727B2 (en) | Calibration method and device for long range guided wave inspection of piping | |
| RU2485388C2 (en) | Device and group of sensors for pipeline monitoring using ultrasonic waves of two different types | |
| CN111678629B (en) | Ultrasonic monitoring probe for internal service stress of ocean structural member | |
| US8640544B2 (en) | Method for analyzing structure safety | |
| CN101398409B (en) | Automatic detection method for oblique incidence wave technology steel plate and device thereof | |
| CN109931896B (en) | Method, equipment and system for detecting wall thickness of high-temperature or low-temperature detected pipeline | |
| CN113701930B (en) | High-strength bolt shear stress detection method based on ultrasonic transverse waves | |
| JPH06129940A (en) | Method and device for monitoring pipe line | |
| Aljets et al. | ACOUSTIC EMISSION SOURCE LOCATION IN PLATE-LIKE STRUCTURES USING A CLOSELY ARRANGED TRIANGULAR SENSOR ARRAY. | |
| CN207215437U (en) | A kind of ultrasonic wave stress detection device | |
| CN204405236U (en) | The fastness that is threaded pick-up unit | |
| US20220170888A1 (en) | Evaluation Method for Reflected Wave | |
| CN1975348A (en) | Ultrasonic wave flow and liquid level measuring method based on multi-pulsion automatic gaining control | |
| CN117168676B (en) | Method and device for detecting screw shaft force by ultrasonic wave | |
| CN105091990B (en) | A kind of ultrasonic flowmeter water-free detection method | |
| CN110849962A (en) | Device and method for evaluating trend and depth of metal crack by utilizing electromagnetic ultrasonic principle | |
| WO2019209654A1 (en) | Detection, monitoring, and determination of location of changes in metallic structures using multimode acoustic signals | |
| CN114459569B (en) | Liquid level switch system and liquid level measurement method | |
| CN116989857A (en) | External clamping type ultrasonic flowmeter with bubble detection and flow correction and measuring method | |
| CN116952748A (en) | System and method for monitoring service performance degradation of node plate | |
| CN114184313B (en) | Ultrasonic double-wave high-reliability detection method and device for bolt stress | |
| CN106556788A (en) | A kind of travelling-wave tube input-output characteristic automatic test approach with pre-amplifier | |
| KR20040033698A (en) | Method and apparatus for diagnosing pipe by using the guided ultrasound | |
| CN116147547A (en) | Nondestructive testing system for detecting depth of concrete opening crack | |
| KR101702520B1 (en) | Leakage detection device and piping facility utilizing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |