CN219842372U - Probe structure for steel rail flaw detection vehicle and flaw detection vehicle with same - Google Patents
Probe structure for steel rail flaw detection vehicle and flaw detection vehicle with same Download PDFInfo
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- CN219842372U CN219842372U CN202320572083.6U CN202320572083U CN219842372U CN 219842372 U CN219842372 U CN 219842372U CN 202320572083 U CN202320572083 U CN 202320572083U CN 219842372 U CN219842372 U CN 219842372U
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- probe
- probe body
- flaw detection
- coupling liquid
- receiving window
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- 239000000523 sample Substances 0.000 title claims abstract description 91
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 title abstract description 33
- 239000010959 steel Substances 0.000 title abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 44
- 238000010168 coupling process Methods 0.000 claims abstract description 44
- 238000005859 coupling reaction Methods 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000007689 inspection Methods 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to the technical field of steel rail flaw detection, in particular to a probe structure for a steel rail flaw detection vehicle and a flaw detection vehicle with the probe structure. The probe structure for the steel rail flaw detection vehicle comprises a probe body, wherein an ultrasonic laser receiving window is arranged in the middle of the lower end of the probe body, a coupling liquid gathering structure is arranged at the lower end of the probe body, and the coupling liquid gathering structure is used for gathering coupling liquid entering from one end of the lower end of the probe body from two sides to the ultrasonic laser receiving window. The advantages are that: the structure design is simple and reasonable, the coupling liquid entering the lower end of the probe body and the steel rail can be effectively collected towards the middle ultrasonic laser receiving window, so that the coupling agent can enter the space between the probe and the steel rail better, the gap between the probe and the steel rail is filled, the coupling liquid is fully coupled, the ultrasonic signal conduction is not blocked, the air interference is reduced, and the flaw detection result is more accurate.
Description
Technical Field
The utility model relates to the technical field of steel rail flaw detection, in particular to a probe structure for a steel rail flaw detection vehicle and a flaw detection vehicle with the probe structure.
Background
In the ultrasonic flaw detection of a railway, an ultrasonic probe needs to take a couplant as an intermediate acoustic impedance matching layer, so that ultrasonic waves excited by a piezoelectric wafer in the probe can enter the inside of a detected steel rail through the couplant layer, ultrasonic flaw detection is realized, if the couplant is not used, air is taken as the intermediate acoustic impedance matching layer, the ultrasonic waves excited by the piezoelectric wafer can generate total reflection on the surface of a probe wedge, and the ultrasonic waves cannot pass through an air layer to enter the inside of the steel rail, so that ultrasonic flaw detection cannot be realized. Therefore, the couplant used for flaw detection is necessary, and the couplant most commonly used for flaw detection in the railway industry is water at present, so the couplant is widely used because of no pollution and low cost.
In the actual flaw detection process, the probe slides on the steel rail to detect flaws, the probe and the steel rail are not well coupled, most of the time water cannot completely enter the probe and the steel rail to realize sufficient coupling, and the main state is that most of the water is extruded out between the probe and the steel rail due to the fact that the elastic piece extrudes the probe, the water quantity is insufficient, or the front of the probe sprays water to the surface of the steel rail, the rear probe clings to the surface of the steel rail, and the water attached to the surface of the steel rail is pushed away (scraped).
Based on this, a new probe needs to be designed to solve the above technical problems.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a probe structure for a steel rail flaw detection vehicle and the flaw detection vehicle with the probe structure, and effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the utility model provides a probe structure for rail flaw detection car, includes the probe body, and the lower extreme middle part of above-mentioned probe body is equipped with ultrasonic laser receiving window, and the lower extreme of above-mentioned probe body is equipped with coupling liquid gathering structure, and above-mentioned coupling liquid gathering structure is used for gathering the coupling liquid that gets into from the one end of above-mentioned probe body lower extreme by both sides to above-mentioned ultrasonic laser receiving window.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the coupling liquid aggregation structure comprises two limiting strips, wherein the two limiting strips are respectively embedded at the lower end of the probe body and protrude out of the lower end of the probe body, the two limiting strips are distributed on two sides of the ultrasonic laser receiving window in an eight shape, and one end of each opening of the two limiting strips is wider toward one end of the probe body.
Further, the coupling liquid gathering structure is provided with two groups, the two groups of coupling liquid gathering structures are distributed between two ends of the probe body at intervals, two limit strips of one group are distributed on two sides of one end of the ultrasonic laser receiving window, two limit strips of the other group are distributed on two sides of the other end of the ultrasonic laser receiving window, and gaps between two adjacent groups of limit strips form an air exhaust area.
Further, one end of the other group of two limiting strips which are close to each other extends to the outside of the end head of the other end of the probe body respectively, and the distance between the two ends which are close to each other is smaller than the width of the ultrasonic laser receiving window.
Further, the limiting strips are hard alloy strips.
Further, the height of the limit strip protruding out of the lower end of the probe body is 0.05-0.1mm.
The beneficial effects are that: the structure design is simple and reasonable, the coupling liquid entering the lower end of the probe body and the steel rail can be effectively collected towards the middle ultrasonic laser receiving window, so that the coupling agent can enter the space between the probe and the steel rail better, the gap between the probe and the steel rail is filled, the coupling liquid is fully coupled, the ultrasonic signal conduction is not blocked, the air interference is reduced, and the flaw detection result is more accurate.
The flaw detection vehicle further provides a flaw detection vehicle comprising a probe structure for the steel rail flaw detection vehicle.
The beneficial effects are that: the flaw detection vehicle is small in interference in the flaw detection process, and the flaw detection result is accurate.
Drawings
FIG. 1 is an elevation view of a probe structure for a rail inspection vehicle of the present utility model;
fig. 2 is a view showing a structure of a lower end face of the probe structure for a rail inspection vehicle according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. a probe body; 2. a coupling liquid aggregation structure; 11. an ultrasonic laser receiving window; 21. and a limit strip.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Example 1
As shown in fig. 1, the probe structure for a rail flaw detection vehicle of this embodiment includes a probe body 1, an ultrasonic laser receiving window 11 is provided in the middle of the lower end of the probe body 1, a coupling liquid collecting structure 2 is provided at the lower end of the probe body 1, and the coupling liquid collecting structure 2 is used for collecting coupling liquid entering from one end of the lower end of the probe body 1 from two sides to the ultrasonic laser receiving window 11.
In the prior art, in the actual flaw detection process, the lower end face of the probe elastically contacts the tread of the steel rail, and the flaw detection is performed along the tread in a sliding and walking way, so that the coupling between the probe and the steel rail is not good, and most of coupling liquid cannot completely enter the lower end face of the probe to be fully coupled with the steel rail in most of time. In this embodiment, the coupling liquid gathering structure 2 is designed on the lower end face of the probe body 1, and in the running and flaw detection process of the probe body 1, water is collected to the position of the middle ultrasonic laser receiving window 11 through the coupling liquid gathering structure 2, so that (couplant) water better enters between the probe body 1 and the steel rail, and the gap between the probe body 1 and the steel rail is filled, so that the coupling liquid is fully coupled, the ultrasonic signal transmission is not blocked, and the air interference is reduced.
As a preferred embodiment, the coupling liquid collecting structure 2 includes two limiting strips 21, the two limiting strips 21 are respectively embedded in the lower end of the probe body 1 and protrude from the lower end of the probe body 1, the two limiting strips 21 are distributed on two sides of the ultrasonic laser receiving window 11 in an eight shape, and one end of the two limiting strips 21 with a wider opening faces to one end of the probe body 1.
In the above embodiment, in the process of the probe body 1 traveling and flaw detection, one end of the coupling liquid is in front of the traveling direction, so after entering from one end of the lower end of the probe body 1, the coupling liquid flows along the two limit strips 21 to the other end of the probe body 1, and in the flowing process, because the two limit strips 21 are distributed in an eight shape and the larger opening end is toward one end of the probe body 1, the coupling liquid can be gathered towards the middle along the two limit strips 21, so as to gather at the ultrasonic laser receiving window 11, fill the gap between the ultrasonic laser receiving window 11 at the lower end of the probe body 1 and the steel rail, and ensure that signal conduction is not blocked.
As a preferred embodiment, the coupling liquid collecting structure 2 is provided with two groups, the two groups of coupling liquid collecting structures 2 are distributed between two ends of the probe body 1 at intervals, two spacing strips 21 of one group are distributed at two sides of one end of the ultrasonic laser receiving window 11, two spacing strips 21 of the other group are distributed at two sides of the other end of the ultrasonic laser receiving window 11, and a gap between two adjacent groups of spacing strips 21 forms an air exhaust area.
In the above embodiment, the two sets of coupling liquid collecting structures 2 (i.e., the two sets of limiting bars 21) can cover the area where the ultrasonic laser receiving window 11 is located in the traveling direction, so as to ensure that the coupling liquid between the ultrasonic laser receiving window 11 and the steel rail is full, meanwhile, because the coupling liquid can push air to the rear of the traveling direction in the collecting process, because the gap is formed between the two sets of coupling liquid collecting structures 2, the gas at the ultrasonic laser receiving window 11 can form a gap (an exhaust area, denoted by a in the figure) and the traveling rear (the other end of the probe body 1) between the two sets of limiting bars 21 in the coupling liquid entering and collecting process, so that the phenomenon that the gas cannot be removed in time and is wrapped by the coupling liquid in the ultrasonic laser receiving window 11 to influence flaw detection is avoided.
As a preferred embodiment, the two mutually close ends of the two limiting strips 21 of the other group extend to the outside of the end of the other end of the probe body 1 respectively, and the distance between the mutually close ends is smaller than the width of the ultrasonic laser receiving window 11.
In the above embodiment, the other set of two limiting bars 21 extends beyond the other end of the ultrasonic laser receiving window 11, so that the flow passage of the coupling liquid passing through the ultrasonic laser receiving window is narrowed (narrowed from wide), which is more beneficial for the coupling liquid to completely fill the gap between the ultrasonic laser receiving window 11 and the rail.
In this embodiment, the limiting strips 21 are made of wear-resistant cemented carbide strips. Specifically, the alloy can be tungsten steel alloy, aluminum alloy, stainless steel alloy and the like.
In this embodiment, the height of the limiting bar 21 protruding from the lower end of the probe body 1 is 0.05-0.1mm. The size design is moderate, so that the lower end of the probe body 1 is not too high from the tread gap of the steel rail, and the coupling liquid can be well filled between the probe body 1 and the steel rail.
Example 2
The flaw detection vehicle of the present embodiment includes the probe structure for a rail flaw detection vehicle of embodiment 1.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (7)
1. The utility model provides a probe structure for rail flaw detection vehicle, includes probe body (1), the lower extreme middle part of probe body (1) is equipped with ultrasonic laser receiving window (11), its characterized in that: the probe is characterized in that a coupling liquid gathering structure (2) is arranged at the lower end of the probe body (1), and the coupling liquid gathering structure (2) is used for gathering coupling liquid entering from one end of the lower end of the probe body (1) from two sides to the ultrasonic laser receiving window (11).
2. The probe structure for a rail inspection vehicle according to claim 1, wherein: the coupling liquid gathering structure (2) comprises two limit strips (21), wherein the two limit strips (21) are respectively embedded at the lower end of the probe body (1) and protrude out of the lower end of the probe body (1), the two limit strips (21) are distributed on two sides of the ultrasonic laser receiving window (11) in an eight shape, and one end of the opening of the two limit strips (21) is wider towards one end of the probe body (1).
3. The probe structure for a rail inspection vehicle according to claim 2, wherein: the coupling liquid gathering structure (2) is provided with two groups, the two groups of the coupling liquid gathering structure (2) are distributed between two ends of the probe body (1) at intervals, two limit strips (21) of one group are distributed on two sides of one end of the ultrasonic laser receiving window (11), two limit strips (21) of the other group are distributed on two sides of the other end of the ultrasonic laser receiving window (11), and a gap between two adjacent groups of limit strips (21) forms an exhaust area.
4. A probe structure for a rail inspection vehicle according to claim 3, characterized in that: the other group of two mutually closed ends of the limiting strips (21) extend out of the end head of the other end of the probe body (1) respectively, and the distance between the mutually closed ends is smaller than the width of the ultrasonic laser receiving window (11).
5. A probe structure for a rail inspection vehicle according to any one of claims 2 to 4, characterized in that: the limiting strips (21) are hard alloy strips.
6. A probe structure for a rail inspection vehicle according to any one of claims 2 to 4, characterized in that: the height of the limit strip (21) protruding out of the lower end of the probe body (1) is 0.05-0.1mm.
7. The utility model provides a flaw detection car which characterized in that: a probe structure for a rail inspection vehicle comprising the probe according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320572083.6U CN219842372U (en) | 2023-03-22 | 2023-03-22 | Probe structure for steel rail flaw detection vehicle and flaw detection vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320572083.6U CN219842372U (en) | 2023-03-22 | 2023-03-22 | Probe structure for steel rail flaw detection vehicle and flaw detection vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219842372U true CN219842372U (en) | 2023-10-17 |
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ID=88303125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320572083.6U Active CN219842372U (en) | 2023-03-22 | 2023-03-22 | Probe structure for steel rail flaw detection vehicle and flaw detection vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219842372U (en) |
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2023
- 2023-03-22 CN CN202320572083.6U patent/CN219842372U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240401 Address after: No. 89, Shuiyuan Street, Xinhua District, Shijiazhuang City, Hebei Province, 050057 Patentee after: Tianyou Ji Railway Logistics Co.,Ltd. Country or region after: China Patentee after: Beijing Xinke Qiyuan Technology Co.,Ltd. Address before: 100176 101, floor 1, building 2, courtyard 6, Kechuang 14th Street, economic and Technological Development Zone, Daxing District, Beijing Patentee before: Beijing Xinke Qiyuan Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |