CN111089902A - Solid shaft ultrasonic flaw detector - Google Patents
Solid shaft ultrasonic flaw detector Download PDFInfo
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- CN111089902A CN111089902A CN201911395594.XA CN201911395594A CN111089902A CN 111089902 A CN111089902 A CN 111089902A CN 201911395594 A CN201911395594 A CN 201911395594A CN 111089902 A CN111089902 A CN 111089902A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of ultrasonic flaw detectors, in particular to a solid shaft ultrasonic flaw detector. The utility model provides a solid shaft ultrasonic flaw detector, includes the organism, and the inside of organism is equipped with oil circulation mechanism, and one side of organism is equipped with the subassembly of detecting a flaw of being connected with oil circulation mechanism, and the side that the organism was kept away from to the subassembly of detecting a flaw is equipped with the butt joint subassembly, and the inside of organism is equipped with ultrasonic system, and the inside of organism is equipped with the power management system with ultrasonic system electric connection. According to the invention, the gap is formed between the probe and the base, and the probe is not in direct contact with the shaft body during measurement, so that the service life of the probe is prolonged, and the probe is protected; the flaw detection assembly and the shaft body are locked through the butt joint assembly, butt joint between the probe and the end face of the shaft body is facilitated, the stability during probe detection is better, and detected data are more stable; through oil circulation mechanism, will detect a flaw the space between subassembly and the axis body and fill up, promote probe measuring accuracy, coupling oil pump returns oil tank and realizes the cyclic utilization of coupling oil.
Description
Technical Field
The invention relates to the technical field of ultrasonic flaw detectors, in particular to a solid shaft ultrasonic flaw detector.
Background
Ultrasonic flaw detection is a method for detecting the flaw of a part by using the characteristic that ultrasonic energy penetrates into the depth of a metal material and is reflected at the edge of an interface when the ultrasonic energy enters another section from the section.
Ultrasonic flaw detector is when detecting the solid axis body of locomotive, place the surface at the axis body with the probe of flaw detector mostly, the probe rotates afterwards, the probe detects the surface of solid axis body, the data transmission that the probe detected is to the inside of ultrasonic pen flaw detector, ultrasonic flaw detector's inside procedure calculates to it, demonstrate the actual condition of axis body, however, the probe is when installing on the axis body, the probe probably rubs with the axis body emergence, lead to the probe to damage, the life of probe is lower, and when probe installation, the installation is comparatively troublesome, there is the deviation in the installation, the detection of data can the error appear, the detection of inconvenient probe.
Disclosure of Invention
The invention aims to provide a solid shaft ultrasonic flaw detector, which solves the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a solid shaft ultrasonic flaw detector, includes the organism, and the inside of organism is equipped with oil circulation mechanism, passes through the hose connection between organism and the subassembly of detecting a flaw, and one side of organism is equipped with the subassembly of detecting a flaw of being connected with oil circulation mechanism, and the side that the organism was kept away from to the subassembly of detecting a flaw is equipped with the butt joint subassembly, and the inside of organism is equipped with ultrasonic system, and the inside of organism is equipped with the power management system with ultrasonic system electric connection.
Preferably, the flaw detection assembly comprises a motor fixedly connected with the machine body, a base is arranged on one side of the motor and is disc-shaped, five probes are arranged inside the base and are distributed in a central symmetry mode, an oil way is arranged between every two adjacent probes, and a gap is formed between the bottoms of the probes and the bottom of the base.
Preferably, the butt joint assembly comprises a butt joint shell fixedly connected with the flaw detection assembly, a butt joint ring is arranged on one side of the butt joint shell, a plurality of permanent magnets which are distributed in central symmetry are arranged between the butt joint ring and the butt joint shell, and a locking bolt with one end inserted into the butt joint shell is arranged on the surface of the butt joint shell.
Preferably, the oil circulation mechanism comprises an oil tank fixedly connected with the machine body, an oil return pump and an oil outlet pump are sequentially arranged on the side face of the machine body, two ends of the oil outlet pump are respectively connected with the oil tank and the flaw detection assembly through oil pipes, and two ends of the oil return pump are respectively connected with the oil tank and the flaw detection assembly through oil pipes.
Preferably, the ultrasonic system comprises a controller fixedly connected with the machine body, the controller is connected with the transmitting module in a one-way mode, the controller is connected with the acquisition module in a two-way mode, and the transmitting module is connected with the acquisition module in a one-way mode.
Preferably, the power management system comprises a storage battery fixedly connected with the machine body, and the storage battery is bidirectionally connected with the management circuit.
Preferably, the distance between the bottom of the probe and the bottom of the base is 0.1 mm.
The invention has at least the following beneficial effects:
through the gap between the probe and the base, the probe is not in direct contact with the shaft body during measurement, the service life of the probe is prolonged, and the probe is protected; the flaw detection assembly and the shaft body are locked through the butt joint assembly, butt joint between the probe and the end face of the shaft body is facilitated, the stability during probe detection is better, and detected data are more stable; through oil circulation mechanism, will detect a flaw the space between subassembly and the axis body and fill up, promote probe measuring accuracy, coupling oil pump returns oil tank and realizes the cyclic utilization of coupling oil.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a top partial view of FIG. 1;
FIG. 3 is a side partial view of FIG. 1;
FIG. 4 is an enlarged view of a portion of the present invention;
FIG. 5 is a system diagram of the present invention.
In the figure: 1. a body; 2. an oil circulation mechanism; 20. an oil tank; 21. an oil return pump; 22. an oil outlet pump; 3. a flaw detection assembly; 30. a motor; 31. a base; 32. a probe; 33. an oil path; 4. a docking assembly; 40. butting the shells; 41. a docking ring; 42. a permanent magnet; 43. locking the bolt; 5. an ultrasonic system; 50. a controller; 51. an acquisition module; 52. a transmitting module; 6. a power management system; 60. a management circuit; 61. a storage battery; 7. a hose.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, a solid shaft ultrasonic flaw detector, includes organism 1, and the inside of organism 1 is equipped with the oil circulation mechanism 2 that is used for the circulation to detect oil, and one side of organism 1 is equipped with the subassembly 3 of detecting a flaw that is used for detecting the internal structure of axis body that is connected with oil circulation mechanism 2, be connected through hose 7 between organism 1 and the subassembly 3 of detecting a flaw, the side that the subassembly 3 of detecting a flaw kept away from organism 1 is equipped with the butt joint subassembly 4 that is used for fixed subassembly 3 and the axis body of detecting a flaw, and the inside of organism 1 is equipped with the ultrasonic system 5 that is used for detecting a flaw information analysis, and the inside of organism 1 is equipped with the power management system 6 who is used for providing whole equipment.
The flaw detection assembly 3 comprises a motor 30 fixedly connected with the machine body 1, a base 31 is arranged on one side of the motor 30, and is specific, the base 31 is fixedly connected with an output shaft of the motor 30, the base 31 is disc-shaped, five probes 32 which are distributed in a central symmetry manner are arranged inside the base 31, and specifically, the probes 32 are fixedly connected with the base 31, four small-angle probes 32 are used for detecting the defects of the embedding parts such as a wheel seat and a tooth seat, one probe 32 is used for detecting larger fatigue cracks and material defects, the base 31 is tightly pressed on an axial end face through a spring (not shown), the probes 32 are driven by the motor 30 to rotate around an axial center by three hundred sixty degrees, an oil path 33 is arranged between every two adjacent probes 32, specifically, the oil path 33 is filled with coupling oil between the probes 32 and the axial end face through an oil circulation system, and a gap is formed between the bottom of the probes 32 and the bottom.
Butt-joint component 4 includes the butt-joint shell 40 with 3 fixed connection of the subassembly of detecting a flaw, one side of butt-joint shell 40 is equipped with butt-joint ring 41, it is concrete, butt-joint ring 41 can be dismantled with butt-joint shell 40 and be connected, it can conveniently detect different axis bodies to change different butt-joint ring 41, it is central symmetric distribution's permanent magnet 42 to be equipped with a plurality of between butt-joint ring 41 and the butt-joint shell 40, it is concrete, permanent magnet 42 and butt-joint shell 40 fixed connection, permanent magnet 42 adsorbs the axis body, play prepositioning's effect, the surface of butt-joint shell 40 is equipped with the inside locking bolt 43 of one end insertion butt-joint shell 40, it is concrete, locking bolt 43 and butt-joint shell 40 threaded connection, locking bolt.
The oil circulation mechanism 2 includes the oil tank 20 with 1 fixed connection of organism, the side of organism 1 is equipped with oil return pump 21 and oil pump 22 in proper order, the both ends of oil pump 22 pass through oil piping connection with oil tank 20 and flaw detection subassembly 3 respectively, it is concrete, oil pipe intercommunication is passed through with the top of flaw detection subassembly 3 to the oil end that produces oil pump 22, the oil suction end that produces oil pump 22 passes through oil pipe and is connected with oil tank 20, oil piping connection is passed through between oil tank 20 and the flaw detection subassembly 3 respectively at the both ends of oil return pump 21, it is concrete, oil suction end of oil return pump 21 passes through oil pipe and the bottom intercommunication of flaw detection subassembly 3, oil return pump 21's the oil end passes through oil pipe and oil tank 20 intercommunication.
The ultrasonic system 5 comprises a controller 50 fixedly connected with the machine body 1, the controller 50 is unidirectionally connected with a transmitting module 52, the controller 50 is bidirectionally connected with an acquisition module 51, the transmitting module 52 is unidirectionally connected with the acquisition module 51, the front end is connected with the ultrasonic probe 32, the rear end is connected with a control computer, and the ultrasonic system is used for exciting the ultrasonic probe 32 to transmit ultrasonic waves and receiving echo signals of the ultrasonic probe 32, converting the signals into digital signals and then sending the digital signals to the control computer for further imaging and analysis.
The power management system 6 comprises a storage battery 61 fixedly connected with the machine body 1, wherein the storage battery 61 is bidirectionally connected with the management circuit 60 and can support the flaw detector to carry out ultrasonic flaw detection under the condition of not being externally connected with a power supply.
The scheme has the following working processes:
firstly, pushing the machine body 1 to a position of a shaft body to be detected, taking down the butt joint ring 41, replacing the matched butt joint ring 41, checking the appearance of the machine, checking the color and depth of oil in the oil tank 20, and finishing the preparation work before detection;
secondly, sleeving the butt joint shell 40 on the side face of the shaft body to be detected, sleeving the butt joint ring 41 on the side face of the shaft body, directly adsorbing the permanent magnet 42 on the surface of the shaft body, completing pre-positioning, then rotating the locking bolt 43, rotating the locking bolt 43 in the butt joint shell 40, enabling the top of the locking bolt 43 to be tightly abutted against the side face of the shaft body, and completing positioning of the butt joint component 4;
thirdly, starting the machine body 1, if no external power supply exists, starting the power management system 6, sending a signal by the management circuit 60, starting the storage battery 61, supplying power by the storage battery 61, starting the oil outlet pump 22, enabling the oil outlet pump 22 to start oil outlet, enabling the oil to enter the oil path 33 along with the oil pipe, filling the oil into a gap between the probe 32 and the shaft body by the oil path 33, starting the motor 30, driving the base 31 to rotate by the motor 30, driving the probe 32 to rotate by the base 31, and enabling the probe 32 to start to detect the shaft body;
fourthly, when the probe 32 detects, the controller 50 generates a signal through the transmitting module 52, the signal enters the probe 32, the probe 32 detects the internal structure of the shaft body, the detected data is collected by the collecting module 51, the collecting module 51 transmits the data to the controller 50, the data is converted into a digital signal and then is sent to the control computer for further imaging and analysis, and a conclusion is obtained;
and fifthly, after the detection is finished, the oil return pump 21 starts to pump the oil between the probe 32 and the end surface of the shaft body, the motor 30 is turned off, the oil pump is turned off, the machine body 1 is turned off, and the detection is finished.
According to the working process, the following steps are known:
through the gap between the probe 32 and the base 31, the probe 32 is not in direct contact with the shaft body during measurement, the service life of the probe 32 is prolonged, and the probe 32 is protected; the butt joint component 4 locks the flaw detection component 3 and the shaft body, so that the butt joint between the probe 32 and the end face of the shaft body is facilitated, the stability of the probe 32 during detection is better, and the detected data is more stable; through oil circulation mechanism 2, fill up the clearance between subassembly 3 and the axis body of detecting a flaw, promote the accuracy that probe 32 measured, coupling oil pump returns oil tank 20 and realizes the cyclic utilization of coupling oil.
Further, the interval between the bottom of probe 32 and the bottom of base 31 is 0.1 millimeter, and is specific, when the recess between probe 32 and base 31 is 0.1 millimeter, guarantees under the detection effect prerequisite of probe 32, and the oil that lets in is less, practices thrift oil.
To sum up, through butt joint subassembly 4, locking detection subassembly 3 and axis body, make things convenient for the butt joint between probe 32 and the axis body terminal surface, it is that stability is better when probe 32 detects, and the data that detect is more stable, and when the recess between probe 32 and base 31 was 0.1 millimeter, under the detection effect prerequisite of guaranteeing probe 32, the oil that lets in was less, practices thrift oil.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a solid shaft ultrasonic flaw detector, includes organism (1), its characterized in that, the inside of organism (1) is equipped with oil circulation mechanism (2), one side of organism (1) is equipped with the subassembly (3) of detecting a flaw of being connected with oil circulation mechanism (2), be connected through hose (7) between organism (1) and the subassembly (3) of detecting a flaw, the side of keeping away from organism (1) in subassembly (3) of detecting a flaw is equipped with butt joint subassembly (4), the inside of organism (1) is equipped with ultrasonic system (5), the inside of organism (1) is equipped with power management system (6) with ultrasonic system (5) electric connection.
2. The solid shaft ultrasonic flaw detector of claim 1, wherein the flaw detection assembly (3) comprises a motor (30) fixedly connected with the machine body (1), a base (31) is arranged on one side of the motor (30), the base (31) is disc-shaped, five probes (32) are arranged inside the base (31) in a central symmetry manner, an oil path (33) is arranged between every two adjacent probes (32), and the bottoms of the probes (32) and the bottom of the base (31) have a gap.
3. The solid-shaft ultrasonic flaw detector according to claim 1, wherein the docking assembly (4) comprises a docking housing (40) fixedly connected with the flaw detection assembly (3), a docking ring (41) is arranged on one side of the docking housing (40), a plurality of permanent magnets (42) are arranged between the docking ring (41) and the docking housing (40) in a central symmetrical distribution, and a locking bolt (43) with one end inserted into the docking housing (40) is arranged on the surface of the docking housing (40).
4. The solid shaft ultrasonic flaw detector according to claim 1, wherein the oil circulation mechanism (2) comprises an oil tank (20) fixedly connected with the machine body (1), a return oil pump (21) and an oil outlet pump (22) are sequentially arranged on the side surface of the machine body (1), two ends of the oil outlet pump (22) are respectively connected with the oil tank (20) and the flaw detection assembly (3) through oil pipes, and two ends of the return oil pump (21) are respectively connected with the oil tank (20) and the flaw detection assembly (3) through oil pipes.
5. The solid-shaft ultrasonic flaw detector according to claim 1, wherein the ultrasonic system (5) comprises a controller (50) fixedly connected with the machine body (1), the controller (50) is unidirectionally connected with a transmitting module (52), the controller (50) is bidirectionally connected with an acquiring module (51), and the transmitting module (52) is unidirectionally connected with the acquiring module (51).
6. The solid-shaft ultrasonic flaw detector of claim 1, wherein the power management system (6) comprises a storage battery (61) fixedly connected with the machine body (1), and the storage battery (61) is bidirectionally connected with the management circuit (60).
7. The solid-axis ultrasonic flaw detector of claim 2, wherein the spacing between the bottom of the probe (32) and the bottom of the base (31) is 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395594.XA CN111089902A (en) | 2019-12-30 | 2019-12-30 | Solid shaft ultrasonic flaw detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395594.XA CN111089902A (en) | 2019-12-30 | 2019-12-30 | Solid shaft ultrasonic flaw detector |
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| CN111089902A true CN111089902A (en) | 2020-05-01 |
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| CN201911395594.XA Pending CN111089902A (en) | 2019-12-30 | 2019-12-30 | Solid shaft ultrasonic flaw detector |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202533416U (en) * | 2012-02-27 | 2012-11-14 | 西南交通大学 | Portable solid axle ultrasonic inspection device |
| CN104076093A (en) * | 2013-03-31 | 2014-10-01 | 常州超声电子有限公司 | Measurable ultrasonic probe adjusting seat |
| CN203870073U (en) * | 2014-06-15 | 2014-10-08 | 克拉玛依市金牛工程建设有限责任公司 | Probe performance testing device for ultrasonic probe array ring |
| CN106124628A (en) * | 2016-08-31 | 2016-11-16 | 北京主导时代科技有限公司 | A kind of hollow axle ultrasonic flaw-detecting machine |
| CN106248793A (en) * | 2016-08-31 | 2016-12-21 | 北京主导时代科技有限公司 | A kind of phased-array ultrasonic hollow axle detection device and detection method |
| CN106918644A (en) * | 2017-04-24 | 2017-07-04 | 南通友联数码技术开发有限公司 | A kind of motion detection device for solid wheel shaft ultrasonic inspection |
| CN207263696U (en) * | 2017-09-12 | 2018-04-20 | 南京林城亿轮轨道交通技术有限公司 | A kind of rolling stock solid shafting phased-array ultrasonic fault detection system probe follow-up device |
| CN110470741A (en) * | 2019-09-10 | 2019-11-19 | 常州春雷电子高新技术有限公司 | Wheel axle end surface reflectoscope |
-
2019
- 2019-12-30 CN CN201911395594.XA patent/CN111089902A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202533416U (en) * | 2012-02-27 | 2012-11-14 | 西南交通大学 | Portable solid axle ultrasonic inspection device |
| CN104076093A (en) * | 2013-03-31 | 2014-10-01 | 常州超声电子有限公司 | Measurable ultrasonic probe adjusting seat |
| CN203870073U (en) * | 2014-06-15 | 2014-10-08 | 克拉玛依市金牛工程建设有限责任公司 | Probe performance testing device for ultrasonic probe array ring |
| CN106124628A (en) * | 2016-08-31 | 2016-11-16 | 北京主导时代科技有限公司 | A kind of hollow axle ultrasonic flaw-detecting machine |
| CN106248793A (en) * | 2016-08-31 | 2016-12-21 | 北京主导时代科技有限公司 | A kind of phased-array ultrasonic hollow axle detection device and detection method |
| CN106918644A (en) * | 2017-04-24 | 2017-07-04 | 南通友联数码技术开发有限公司 | A kind of motion detection device for solid wheel shaft ultrasonic inspection |
| CN207263696U (en) * | 2017-09-12 | 2018-04-20 | 南京林城亿轮轨道交通技术有限公司 | A kind of rolling stock solid shafting phased-array ultrasonic fault detection system probe follow-up device |
| CN110470741A (en) * | 2019-09-10 | 2019-11-19 | 常州春雷电子高新技术有限公司 | Wheel axle end surface reflectoscope |
Non-Patent Citations (2)
| Title |
|---|
| 严寒冰等: "大型回转件表面形状自适应扫查在线超声波探伤系统", 《无损检测》 * |
| 邹诚等: "实心车轴超声自动探伤系统的设计与实现", 《自动化与仪表》 * |
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