An ultrasonic probe for measuring the depth of corrosion in monel
By designing an ultrasonic detector with a servo motor and lead screw structure, precise measurement of the corrosion depth of Monel alloy was achieved, solving the problems of low adjustment accuracy and long operation time in the existing technology, improving the flexibility and accuracy of measurement, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2025-10-14
- Publication Date
- 2026-07-21
AI Technical Summary
Existing ultrasonic detectors used to measure the corrosion depth of Monel alloys are insufficient in terms of adjustment accuracy and operating efficiency, making it difficult to achieve precise contact in irregular corrosion areas, resulting in large fluctuations in measurement data.
An ultrasonic detector comprising a first adjustment frame and a second adjustment frame was designed. The detector utilizes a servo motor and a lead screw structure to achieve flexible adjustment of the horizontal and vertical directions of the detection components. Combined with a modular design, it is easy to disassemble and assemble.
It improves the flexibility, convenience and accuracy of measurement, reduces measurement errors, and lowers equipment maintenance costs and ease of use.
Smart Images
Figure CN224535049U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of ultrasonic measuring equipment, specifically relating to an ultrasonic detector for measuring the corrosion depth of Monel alloy. Background Technology
[0002] Monel alloy is a high-performance corrosion-resistant alloy with nickel as the base and copper as the main alloying element, commonly used in corrosive environments such as fluid transportation pipelines. However, the material will still gradually corrode after prolonged use, leading to the risk of leakage. Therefore, it is necessary to be able to detect corrosion. Currently, corrosion detection methods mainly include magnetic flux leakage (MFL) testing, ultrasonic testing, and radiographic testing. Among them, MFL testing uses a magnetic flux leakage array sensor to identify defects, ultrasonic testing uses the sound wave reflection characteristics to measure coating thickness and corrosion depth, and radiographic testing uses tangential radiography to achieve non-destructive evaluation of pipe wall thickness.
[0003] Conventional ultrasonic detectors used to measure the corrosion depth of Monel alloys suffer from low adjustment accuracy and long operation time when operated manually. When facing irregular corrosion areas, it is difficult to quickly achieve precise contact between the detector component and the alloy surface, resulting in large fluctuations in measurement data. Utility Model Content
[0004] The purpose of this invention is to provide an ultrasonic detector for measuring the corrosion depth of Monel alloys, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An ultrasonic detector for measuring the corrosion depth of Monel alloy includes a first adjustment frame, a second adjustment frame, and a detection component. The second adjustment frame is vertically connected to the top of the first adjustment frame, and the detection component is connected to one side of the second adjustment frame. The first adjustment frame includes a counterweight, a support rail, a moving stage, a first servo motor, and a first lead screw. Two sets of support rails are horizontally mounted on the top surface of the counterweight, and the moving stage is connected to the surface of the support rail. The first servo motor is horizontally mounted on one end of the support rail, and the power output end of the first servo motor is horizontally connected to the first lead screw via a quick-connect coupling.
[0006] Furthermore, the counterweight base has symmetrical vertical holes for bolt installation at both ends, and the support rail is embedded in the top surface of the counterweight base. Both the support rail and the moving platform are made of damping alloy material.
[0007] Furthermore, the support guide rail and the first lead screw are parallel to each other, and the bottom center of the moving stage is threadedly connected to the first lead screw. Moreover, the support guide rail and the bottom ends of the moving stage are connected to each other by a slotted embedded structure.
[0008] Furthermore, the second adjustment frame includes a stabilizing column, a fixed base, a stabilizing guide rail, a second servo motor, a second lead screw, and a lifting frame. The bottom of the stabilizing column is provided with a fixed base, and a stabilizing guide rail is vertically installed on the side surface of the stabilizing column near the detection component. The upper end of the stabilizing column is vertically provided with a second servo motor, and the bottom power output end of the second servo motor is vertically connected to and installed with a second lead screw through a quick-connect coupling. At the same time, a lifting frame is connected and installed on the surface of the second lead screw.
[0009] Furthermore, the stabilizing column and the fixed seat are welded together, and the fixed seat has vertical holes at its four opposite corners for bolt installation. The fixed seat is installed on the top surface of the moving platform.
[0010] Furthermore, the end of the lifting frame near the stabilizing column is connected to the stabilizing guide rail by a slotted embedded structure, and the middle part of the lifting frame is threadedly connected to the second lead screw.
[0011] Furthermore, the detection component includes an ultrasonic detection body, a terminal block, a stabilizer, a ratchet shaft, a connecting post, and a docking seat. The terminal block is installed at the rear end of the ultrasonic detection body, and the stabilizer is vertically connected to the middle of the ultrasonic detection body. The ratchet shaft is horizontally installed at the upper end of the stabilizer, and the connecting post is horizontally installed at the axis of the stabilizer. At the same time, a docking seat is provided at the end of the connecting post away from the stabilizer.
[0012] Furthermore, the docking seat and the connecting pile are integrally structured, and the docking seat has vertical holes for bolt installation at its four opposite corners. The docking seat is connected and installed at the end of the lifting frame away from the stabilizing column.
[0013] Beneficial effects: 1. A first adjusting frame is provided, in which a first servo motor driven by a counterweight section rotates a first lead screw. Since the bottom of the moving stage is threadedly connected to the first lead screw, and the support rail and both ends of the moving stage are connected by a slotted embedded structure, the moving stage can move smoothly horizontally along the direction of the support rail under its guidance. This allows for flexible adjustment of the horizontal position of the detection component according to actual measurement needs, adapting to Monel alloy corrosion depth measurements at different locations, thus improving measurement flexibility and convenience. Furthermore, the ultrasonic detection body in the detection component is connected to external equipment via terminals for data transmission and processing. A ratchet shaft horizontally mounted on the upper end of the stabilizing frame can adjust and fix the angle of the ultrasonic detection body within a certain range to adapt to different angle measurement requirements. The connecting pile and docking seat are integrated, with the docking seat connected and installed at the end of the lifting frame away from the stabilizing column. This structure ensures the stability and reliability of the connection between the detection component and the second adjusting frame, maintaining a stable posture during measurement and reducing measurement errors caused by shaking and other factors, thereby improving the accuracy and reliability of the measurement results.
[0014] 2. A second adjustment frame is provided, in which a fixed base at the bottom of the stabilizing column is installed on the top surface of the moving stage. A second servo motor vertically mounted at the upper end of the stabilizing column drives the second lead screw to rotate. Because the end of the lifting frame near the stabilizing column is connected to the stabilizing guide rail by a slotted embedded structure, and the middle part of the lifting frame is threadedly connected to the second lead screw, the lifting frame can move vertically up and down along the direction of the stabilizing guide rail under the guidance of the stabilizing guide rail. This causes the detection component to adjust its position in the vertical direction, so that the detection component can accurately reach the position to be measured on the Monel alloy surface, further improving the accuracy and adaptability of the measurement.
[0015] 3. The entire structure adopts a modular design, with tight connections between components that are easy to disassemble and assemble. When a component malfunctions or requires maintenance, it can be easily replaced and repaired, reducing equipment maintenance costs and ease of use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the axial side view of the ultrasonic detector of this invention for measuring the corrosion depth of Monel alloy. Figure 2 This is a schematic diagram of the first adjustment frame structure of the ultrasonic detector of this utility model for measuring the corrosion depth of Monel alloy; Figure 3 This is a three-dimensional structural diagram of the second adjustment frame of the ultrasonic detector for measuring the corrosion depth of Monel alloy according to this utility model. Figure 4This is a three-dimensional structural diagram of the detection component of the ultrasonic detector used to measure the corrosion depth of Monel alloy according to this utility model.
[0017] In the diagram: 1. First adjusting frame; 101. Counterweight seat; 102. Support rail; 103. Moving stage; 104. First servo motor; 105. First lead screw; 2. Second adjusting frame; 201. Stabilizing column; 202. Fixed seat; 203. Stabilizing rail; 204. Second servo motor; 205. Second lead screw; 206. Lifting frame; 3. Detection component; 301. Ultrasonic detection body; 302. Wiring terminal; 303. Stabilizing frame; 304. Ratchet shaft; 305. Connecting post; 306. Docking seat. Detailed Implementation
[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0019] The principle of ultrasonic measurement of alloy corrosion depth in this application is based on the propagation characteristics of high-frequency sound waves in materials. The material thickness change is calculated by the time difference of the reflected signal and the sound velocity, thereby quantifying the degree of corrosion. An ultrasonic probe emits high-frequency pulses (typically 1-10 MHz) towards the alloy surface. When the sound waves propagate within the material to the corroded area or the back side, they are reflected due to differences in acoustic impedance. By measuring the time difference (Δt) between the emitted and reflected waves, and combining this with the known sound velocity (v), the corrosion depth (d) is calculated. If the original thickness of the material is H and the current measured value is h, then the corrosion depth is Hh.
[0020] like Figures 1 to 4As shown, the ultrasonic detector for measuring the corrosion depth of Monel alloy provided in this application includes a first adjustment frame 1, a second adjustment frame 2, and a detection component 3. The second adjustment frame 2 is vertically connected to the top of the first adjustment frame 1, and the detection component 3 is connected to one side of the second adjustment frame 2. The first adjustment frame 1 includes a counterweight 101, a support rail 102, a moving stage 103, a first servo motor 104, and a first lead screw 105. Two sets of support rails 102 are horizontally mounted on the top surface of the counterweight 101, and the moving stage 103 is connected to the surface of the support rails 102. The first servo motor 104 is horizontally mounted on one end of the support rail 102, and the first lead screw 105... The power output end of the servo motor 104 is horizontally connected to the first lead screw 105 via a quick-connect coupling. The front and rear ends of the counterweight 101 are symmetrically and vertically provided with holes for bolt installation. The support rail 102 is embedded in the top surface of the counterweight 101. Both the support rail 102 and the moving table 103 are made of damping alloy material. The support rail 102 and the first lead screw 105 are parallel to each other. The bottom center of the moving table 103 is threadedly connected to the first lead screw 105. The bottom ends of the support rail 102 and the moving table 103 are connected to each other by a slotted embedded structure.
[0021] In some embodiments, the detection component 3 includes an ultrasonic detection body 301, a terminal block 302, a stabilizer 303, a ratchet shaft 304, a connecting post 305, and a docking seat 306. The terminal block 302 is installed at the rear end of the ultrasonic detection body 301, and the stabilizer 303 is vertically connected to the middle of the ultrasonic detection body 301. The ratchet shaft 304 is horizontally installed at the upper end of the stabilizer 303, and the connecting post 305 is horizontally installed at the axis of the stabilizer 303. At the same time, the docking seat 306 is provided at the end of the connecting post 305 away from the stabilizer 303. The docking seat 306 and the connecting post 305 are integrally formed.
[0022] The docking seat 306 has vertical holes at its four opposite corners for bolt installation. The docking seat 306 is connected to the end of the lifting frame 206 away from the stabilizing column 201. The first servo motor 104, which is horizontally mounted on the counterweight seat 101, drives the first lead screw 105 to rotate. Since the bottom of the moving platform 103 is threadedly connected to the first lead screw 105, and the support guide rail 102 and the bottom ends of the moving platform 103 are connected by a slotted embedded structure, the moving platform 103 can move smoothly horizontally along the direction of the support guide rail 102 under the guidance of the support guide rail 102.
[0023] like Figures 1 to 4As shown, the second adjustment frame 2 includes a stabilizing column 201, a fixed base 202, a stabilizing guide rail 203, a second servo motor 204, a second lead screw 205, and a lifting frame 206. The fixed base 202 is provided at the bottom of the stabilizing column 201, and the stabilizing guide rail 203 is vertically installed on the side surface of the stabilizing column 201 near the detection component 3. The second servo motor 204 is vertically provided at the upper end of the stabilizing column 201, and the second lead screw 205 is vertically connected to the bottom power output end of the second servo motor 204 through a quick-connect coupling. The lifting frame 206 is connected to the surface of the second lead screw 205. The stabilizing column 201 and the fixed base 202 are welded together, and the fixed base 202 has holes for bolt installation at its four opposite corners. The fixed base 202 is installed on the top surface of the moving platform 103.
[0024] The lifting frame 206 is connected to the stabilizing column 201 at one end with the stabilizing guide rail 203 via a slotted embedded structure. The middle part of the lifting frame 206 is threadedly connected to the second lead screw 205. The fixed seat 202 at the bottom of the stabilizing column 201 is mounted on the top surface of the moving platform 103. The second servo motor 204, which is vertically mounted at the upper end of the stabilizing column 201, drives the second lead screw 205 to rotate. Because the lifting frame 206 is connected to the stabilizing guide rail 203 at one end with the slotted embedded structure, and the middle part of the lifting frame 206 is threadedly connected to the second lead screw 205, the lifting frame 206 can move vertically up and down along the direction of the stabilizing guide rail 203 under the guidance of the stabilizing guide rail 203.
[0025] In summary, when using this ultrasonic detector, first place the ultrasonic detector at a suitable position near the Monel alloy to be tested, and then use the bolt mounting holes at both ends of the counterweight 101 to securely install the first adjustment frame 1 on the work platform to ensure the stability of the equipment during operation. Next, based on the specific location on the Monel alloy where the corrosion depth needs to be measured, the first servo motor 104 is started. The first servo motor 104 drives the first lead screw 105 to rotate. Since the bottom center of the moving stage 103 is threadedly connected to the first lead screw 105, and the support rail 102 and the bottom ends of the moving stage 103 are connected to each other by a slotted embedded structure, under the guidance of the support rail 102, the moving stage 103 moves horizontally along the direction of the support rail 102, thereby adjusting the detection component 3 to a suitable horizontal position. Then, the second servo motor 204 is started, which drives the second lead screw 205 to rotate. Because the end of the lifting frame 206 near the stabilizing column 201 is connected to the stabilizing guide rail 203 by a slotted embedded structure, and the middle part of the lifting frame 206 is threadedly connected to the second lead screw 205, under the guidance of the stabilizing guide rail 203, the lifting frame 206 moves vertically up and down along the direction of the stabilizing guide rail 203, which drives the detection component 3 to adjust its position in the vertical direction, so that the ultrasonic detection body 301 accurately reaches the position to be measured on the surface of the Monel alloy. During the measurement process, the ultrasonic probe 301 emits high-frequency pulses towards the Monel alloy surface. When the sound waves propagate inside the material to the corrosion area or the back side, they are reflected due to the difference in acoustic impedance. By measuring the time difference between the emitted and reflected waves and combining it with the known sound velocity of Monel alloy, the corrosion depth can be calculated. At the same time, the ultrasonic probe 301 is connected to an external device through the terminal block 302 to transmit the measurement data to the external device for processing and analysis. If it is necessary to adjust the angle of the ultrasonic probe body 301, the ultrasonic probe body 301 can be adjusted and fixed within a certain range through the ratchet shaft 304 horizontally installed at the upper end of the stabilizer 303 to meet the measurement requirements of different angles. After the measurement is completed, turn off the first servo motor 104 and the second servo motor 204, remove the equipment from the work platform, and store it properly for future use. The ultrasonic detector, through the cooperation of the first adjustment frame 1 and the second adjustment frame 2, realizes the flexible adjustment of the detection component 3 in the horizontal and vertical directions, which improves the accuracy and adaptability of the measurement. At the same time, each component adopts a modular design, which is easy to disassemble and assemble, reducing the maintenance cost and difficulty of use of the equipment.
[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. An ultrasonic detector for measuring the corrosion depth of Monel alloy, comprising a first adjustment frame (1), a second adjustment frame (2), and a detection component (3), characterized in that: The top of the first adjustment frame (1) is vertically connected to the second adjustment frame (2), and the detection component (3) is connected to one side of the second adjustment frame (2). The first adjustment frame (1) includes a counterweight (101), a support rail (102), a moving platform (103), a first servo motor (104), and a first lead screw (105). The top surface of the counterweight (101) is horizontally mounted with two sets of support rails (102), and the surface of the support rails (102) is connected to the moving platform (103). The first servo motor (104) is horizontally mounted on one end of the support rails (102), and the power output end of the first servo motor (104) is horizontally connected to the first lead screw (105) through a quick-connect coupling.
2. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 1, characterized in that, The counterweight base (101) has symmetrical vertical holes for bolt installation at both ends. The support rail (102) is embedded in the top surface of the counterweight base (101). Both the support rail (102) and the moving platform (103) are made of damping alloy material.
3. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 1, characterized in that, The support guide rail (102) and the first lead screw (105) are parallel to each other, and the bottom middle of the moving stage (103) is threadedly connected to the first lead screw (105). Furthermore, the bottom ends of the support guide rail (102) and the moving stage (103) are connected to each other by a slotted embedded structure.
4. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 1, characterized in that, The second adjustment frame (2) includes a stabilizing column (201), a fixed seat (202), a stabilizing guide rail (203), a second servo motor (204), a second lead screw (205), and a lifting frame (206). The bottom of the stabilizing column (201) is provided with a fixed seat (202), and the stabilizing guide rail (203) is vertically installed on the side surface of the stabilizing column (201) near the detection component (3). The upper end of the stabilizing column (201) is vertically provided with a second servo motor (204), and the bottom power output end of the second servo motor (204) is vertically connected to and installed with a second lead screw (205) through a quick-connect coupling. At the same time, the surface of the second lead screw (205) is connected to and installed with a lifting frame (206).
5. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 4, characterized in that, The stabilizing column (201) and the fixed seat (202) are welded together, and the fixed seat (202) has holes for bolt installation at four opposite corners. The fixed seat (202) is installed on the top surface of the moving platform (103).
6. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 4, characterized in that, The lifting frame (206) is connected to the stabilizing guide rail (203) by a slotted embedded structure at one end near the stabilizing column (201), and the middle part of the lifting frame (206) is threadedly connected to the second lead screw (205).
7. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 4, characterized in that, The detection component (3) includes an ultrasonic detection body (301), a terminal block (302), a stabilizer (303), a ratchet shaft (304), a connecting post (305), and a docking seat (306). The terminal block (302) is installed at the rear end of the ultrasonic detection body (301), and the stabilizer (303) is vertically connected to the middle of the ultrasonic detection body (301). The ratchet shaft (304) is horizontally installed at the upper end of the stabilizer (303), and the connecting post (305) is horizontally installed at the axis of the stabilizer (303). At the same time, the docking seat (306) is provided at the end of the connecting post (305) away from the stabilizer (303).
8. The ultrasonic detector for measuring the corrosion depth of Monel alloy according to claim 7, characterized in that, The docking seat (306) and the connecting pile (305) are integrated into one structure, and the docking seat (306) has holes for bolt installation at four opposite corners. The docking seat (306) is connected to the end of the lifting frame (206) away from the stabilizing column (201).