Special test block for detecting distance and amplitude characteristics of steel rail wheel type probe

Abstract

The utility model discloses a special test block for detecting distance amplitude characteristics of a steel rail wheel type probe, which comprises a panel type detection plate and a step type detection plate, and a first detection top surface of the panel type detection plate and a second detection top surface of the step type detection plate are coplanar and consistent in structure. The panel type detection plate is provided with a first detection transverse hole and a second detection transverse hole. Two sides of the panel type detection plate are symmetrically provided with a row of detection transverse hole groups from top to bottom. The step type detection plate comprises a first detection step, a second detection step, a third detection step, a fourth detection step, a fifth detection step, a sixth detection step, a seventh detection step, an eighth detection step and a ninth detection step which are connected in sequence. According to the utility model, the step type detection plate is used for detecting the distance amplitude characteristic of the 0-degree probe, and the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole and the detection transverse hole group which are symmetrically arranged in the special test block are used for detecting the distance amplitude characteristic of the angle probe in the wheel type probe.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail wheel type probe detection test blocks, and particularly relates to a special test block for detecting the distance amplitude characteristics of a rail wheel type probe. Background Art

[0002] The working performance of a rail wheel type ultrasonic flaw detector refers to the working performance of the ultrasonic flaw detection system tested by the rail wheel type ultrasonic flaw detector under the on-site detection conditions. The ultrasonic detection system refers to the equipment used in actual detection work, including flaw detectors, wheel type probes, and high-frequency cables connecting them. The non-destructive detection of metal material workpieces is the detection of the inside and surface of workpieces without damaging or changing their physical and chemical states, and is widely used in fields such as the nuclear industry, aerospace, metallurgy, machinery, electric power, special equipment, petrochemical industry, railway, ordnance, shipbuilding, coal, non-ferrous metals, construction, and medicine. Conventional non-destructive detections include ultrasonic detection, ray detection, magnetic particle detection, penetrant detection, and eddy current detection. Among them, ultrasonic detection of metal materials is the most widely used, most frequently used, and fastest-developing non-destructive detection method at home and abroad, and is an important means for quality control of product manufacturing, product performance testing, process improvement, equipment maintenance, in-service detection, and quality appraisal.

[0003] At present, China adopts double-track rail ultrasonic detection equipment to detect the double tracks of railways simultaneously. The double-track rail ultrasonic detection equipment consists of an ultrasonic detector, a wheel type probe, a cable, a rail vehicle, a coupling agent tank, a centering system, an electromechanical system, system software, and devices connected to the detector during detection. Among them, each of the two-wheel wheel type probes contains 9 probes (5). The 9 probes (5) in the wheel type probe are respectively: 1 0° probe; 1 front 37° (or +37°) probe and 1 rear 37° (or -37°) probe, 1 front 70° (or +70°) probe, 1 front left oblique 70° (or left +70°) probe, 1 front right oblique 70° (or right +70°) probe, 1 rear 70° (or -70°) probe, 1 rear left oblique 70° (or left -70°) probe, and 1 rear right oblique 70° (or right -70°) probe. The inclination angle a of the oblique 70° is generally 20°. The 9 probes are arranged in the following Figure 6 way and installed on the fixed curved surface in a flexible tire filled with coupling liquid, as shown in Figure 1 . At present, there is only a separate stepped test block for detecting the distance amplitude characteristics of a straight probe, and there is no effective detection means for detecting the distance amplitude characteristics of a rail wheel type probe. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a special test block for detecting the distance amplitude characteristics of a rail wheel probe, aiming at the deficiencies in the above-mentioned prior art. The design is novel and reasonable. The distance amplitude characteristics of the 0° probe are detected by using a stepped detection plate, and the distance amplitude characteristics of the 37° and 70° probes in the wheel probe are detected by using the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole and the detection transverse hole group symmetrically arranged in the special test block formed by integrating the panel detection plate and the stepped detection plate. The use effect is good and it is convenient to popularize and use.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a special test block for detecting the distance amplitude characteristics of a rail wheel probe, which is characterized in that it includes a panel detection plate and a stepped detection plate integrally and side-by-side connected to the panel detection plate. The first detection top surface of the panel detection plate and the second detection top surface of the stepped detection plate are coplanar and have the same structure. A first detection transverse hole is opened in the middle position of the upper part of the panel detection plate. A column of detection transverse hole groups are symmetrically opened from top to bottom on both sides of the panel detection plate. A second detection transverse hole is opened at the position between the first detection transverse hole and the detection transverse hole group on the panel detection plate. The stepped detection plate includes a first detection step, a second detection step, a third detection step, a fourth detection step, a fifth detection step, a sixth detection step, a seventh detection step, an eighth detection step and a ninth detection step connected in sequence;

[0006] The distances between the lower surfaces of the steps of the first detection step, the second detection step, the third detection step, the fourth detection step, the fifth detection step, the sixth detection step, the seventh detection step and the eighth detection step and the second detection top surface are not equal to each other. The lower surface of the step of the ninth detection step is at the same height as the lower surface of the step of the first detection step. The eleventh detection transverse holes with the same height are opened on both the ninth detection step and the first detection step;

[0007] The distances between the central axes of the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole and each detection transverse hole in the detection transverse hole group and the first detection top surface are not equal to each other.

[0008] The above-mentioned special test block for detecting the distance amplitude characteristics of a rail wheel probe is characterized in that: the detection transverse hole group includes a third detection transverse hole, a fourth detection transverse hole, a fifth detection transverse hole, a sixth detection transverse hole, a seventh detection transverse hole, an eighth detection transverse hole, a ninth detection transverse hole and a tenth detection transverse hole opened in sequence from top to bottom.

[0009] The above-mentioned special test block for detecting the distance amplitude characteristics of a rail wheel probe is characterized in that: a card slot is opened in the middle position of the lower side of the panel detection plate.

[0010] The above-mentioned special test block for detecting the distance-amplitude characteristic of a rail wheel probe is characterized in that the sum of the widths of the panel-type detection plate and the stepped detection plate is greater than the width of the rail probe wheel.

[0011] The above-mentioned special test block for detecting the distance-amplitude characteristic of a rail wheel probe is characterized in that the diameter of each detection transverse hole in the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole and the detection transverse hole group is 3 mm, and the distances between the central axes of the first detection transverse hole, the second detection transverse hole, the third detection transverse hole, the fourth detection transverse hole, the fifth detection transverse hole, the sixth detection transverse hole, the seventh detection transverse hole, the eighth detection transverse hole, the ninth detection transverse hole, the tenth detection transverse hole and the eleventh detection transverse hole and the first detection top surface are 65 mm, 80 mm, 10 mm, 30 mm, 50 mm, 70 mm, 90 mm, 110 mm, 130 mm, 150 mm and 20 mm respectively.

[0012] The above-mentioned special test block for detecting the distance-amplitude characteristic of a rail wheel probe is characterized in that the distances between the lower surfaces of the steps of the first detection step, the second detection step, the third detection step, the fourth detection step, the fifth detection step, the sixth detection step, the seventh detection step and the eighth detection step and the second detection top surface are 40 mm, 100 mm, 30 mm, 80 mm, 50 mm, 20 mm, 10 mm and 150 mm respectively.

[0013] The above-mentioned special test block for detecting the distance-amplitude characteristic of a rail wheel probe is characterized in that the special test block in which the panel-type detection plate and the stepped detection plate are processed and made into one body is a No. 20 low-carbon steel special test block, and the grain size of the special test block in which the panel-type detection plate and the stepped detection plate are processed and made into one body is 7-8 grades.

[0014] The utility model has the following advantages compared with the prior art:

[0015] 1. The first detection top surface of the panel-type detection plate and the second detection top surface of the stepped detection plate of the utility model are coplanar and have the same structure, which is used to support the moving detection process of the rail probe wheel mutually and is convenient for popularization and use.

[0016] 2. The distances between the lower surfaces of the steps of the first detection step, the second detection step, the third detection step, the fourth detection step, the fifth detection step, the sixth detection step, the seventh detection step and the eighth detection step and the second detection top surface of the utility model are not equal, and the stepped detection plate with different height steps is used to detect the distance-amplitude characteristic of the 0° probe.

[0017] 3. The design of the utility model is novel and reasonable. The distances between the central axes of the first detection horizontal hole, the second detection horizontal hole, the eleventh detection horizontal hole and each detection horizontal hole in the detection horizontal hole group and the first detection top surface are not equal. The distance amplitude characteristics of the 37° and 70° probes in the wheel type probe are detected by using the first detection horizontal hole, the second detection horizontal hole, the eleventh detection horizontal hole and the detection horizontal hole group symmetrically arranged in the special test block made by integrating the panel type detection plate and the stepped detection plate, which is convenient for popularization and use.

[0018] To sum up, the design of the utility model is novel and reasonable. The distance amplitude characteristics of the 0° probe are detected by using the stepped detection plate, and the distance amplitude characteristics of the 37° and 70° probes in the wheel type probe are detected by using the first detection horizontal hole, the second detection horizontal hole, the eleventh detection horizontal hole and the detection horizontal hole group symmetrically arranged in the special test block made by integrating the panel type detection plate and the stepped detection plate. The use effect is good and it is convenient for popularization and use.

[0019] The technical solution of the utility model will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0020] Figure 1 It is the usage state diagram of the utility model.

[0021] Figure 2 It is the structural schematic diagram of the utility model.

[0022] Figure 3 For Figure 2 The rear view.

[0023] Figure 4 It is the dimension marking diagram of the utility model.

[0024] Figure 5 For Figure 4 The B-B sectional view.

[0025] Figure 6 It is the layout diagram of nine probes of the utility model.

[0026] Description of the Reference Numerals:

[0027] 1 - Panel type detection plate; 2 - Stepped detection plate; 3 - Card slot;

[0028] 4 - Rail detection wheel; 5 - Probe; 10 - First detection top surface;

[0029] 11 - First detection horizontal hole; 12 - Second detection horizontal hole; 13 - Third detection horizontal hole;

[0030] 14 - Fourth detection horizontal hole; 15 - Fifth detection horizontal hole; 16 - Sixth detection horizontal hole;

[0031] 17—the seventh detection horizontal hole; 18—the eighth detection horizontal hole; 19—the ninth detection horizontal hole;

[0032] 110—tenth detection horizontal hole; 20—second detection top surface; 21—first detection step;

[0033] 22—Second detection step; 23—Third detection step; 24—Fourth detection step;

[0034] 25—fifth inspection step; 26—sixth inspection step; 27—seventh inspection step;

[0035] 28—eighth detection step; 29—ninth detection step; 210—eleventh detection horizontal hole. DETAILED DESCRIPTION

[0036] like Figures 1 to 6 As shown, the utility model includes a panel-type detection board 1 and a step-type detection board 2 integrally connected to the panel-type detection board 1 side by side, the first detection top surface 10 of the panel-type detection board 1 and the second detection top surface 20 of the step-type detection board 2 are coplanar and have the same structure, a first detection horizontal hole 11 is opened in the middle position of the panel-type detection board 1, and a row of detection horizontal hole groups are symmetrically opened from top to bottom on both sides of the panel-type detection board 1, and a second detection horizontal hole 12 is opened at a position between the first detection horizontal hole 11 and the detection horizontal hole group on the panel-type detection board 1; the step-type detection board 2 includes a first detection step 21, a second detection step 22, a third detection step 23, a fourth detection step 24, a fifth detection step 25, a sixth detection step 26, a seventh detection step 27, an eighth detection step 28 and a ninth detection step 29 connected in sequence;

[0037] The distances between the lower surfaces of the first detection step 21, the second detection step 22, the third detection step 23, the fourth detection step 24, the fifth detection step 25, the sixth detection step 26, the seventh detection step 27 and the eighth detection step 28 and the second detection top surface 20 are not equal, the lower surface of the ninth detection step 29 is at the same height as the lower surface of the first detection step 21, and the ninth detection step 29 and the first detection step 21 are both provided with an eleventh detection horizontal hole 210 of the same height;

[0038] The distances between the central axis of the first detection transverse hole 11 , the second detection transverse hole 12 , the eleventh detection transverse hole 210 and each detection transverse hole in the detection transverse hole group and the first detection top surface 10 are not equal.

[0039] In this embodiment, the detection transverse hole group includes a third detection transverse hole 13, a fourth detection transverse hole 14, a fifth detection transverse hole 15, a sixth detection transverse hole 16, a seventh detection transverse hole 17, an eighth detection transverse hole 18, a ninth detection transverse hole 19, and a tenth detection transverse hole 110 which are successively opened from top to bottom.

[0040] In this embodiment, a clamping groove 3 is opened at the middle position on the lower side of the panel - type detection plate 1.

[0041] In this embodiment, the sum of the widths of the panel - type detection plate 1 and the stepped detection plate 2 is greater than the width of the rail detection wheel 4. When the rail detection wheel 4 moves on the panel - type detection plate 1 or the stepped detection plate 2, one side of the detection top surface provides auxiliary support for the rail detection wheel 4, and the other side is slightly suspended, which does not affect the movement and detection structure of the rail detection wheel 4 and avoids the detection top surface being too narrow, causing the rail detection wheel 4 to sink in and interfering with the detection result.

[0042] It should be noted that the first detection top surface of the panel - type detection plate and the second detection top surface of the stepped detection plate are coplanar and have the same structure, which is used to support each other during the movement detection process of the rail detection wheel; the distances between the lower surfaces of the steps of the first detection step, the second detection step, the third detection step, the fourth detection step, the fifth detection step, the sixth detection step, the seventh detection step, and the eighth detection step and the second detection top surface are not equal, and the stepped detection plate with different - height steps is used to detect the distance - amplitude characteristics of the 0° probe; the distances between the central axes of the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole, and each detection transverse hole in the detection transverse hole group and the first detection top surface are not equal, and the first detection transverse hole, the second detection transverse hole, the eleventh detection transverse hole, and the detection transverse hole group which are symmetrically arranged in the special test block formed by integrating the panel - type detection plate and the stepped detection plate are used to detect the distance - amplitude characteristics of the 37° and 70° probes in the wheel - type probe.

[0043] As Figure 1 and Figure 6 shown, the nine probes 5 are respectively a 0° probe, a front 37° probe, a rear 37° probe, a front 70° probe, a rear 70° probe, a front left - inclined 70° probe, a front right - inclined 70° probe, a rear left - inclined 70° probe, and a rear right - inclined 70° probe.

[0044] In this embodiment, the diameters of the first detection transverse hole 11, the second detection transverse hole 12, the eleventh detection transverse hole 210 and each detection transverse hole in the detection transverse hole group are 3 mm. The distances between the central axes of the first detection transverse hole 11, the second detection transverse hole 12, the third detection transverse hole 13, the fourth detection transverse hole 14, the fifth detection transverse hole 15, the sixth detection transverse hole 16, the seventh detection transverse hole 17, the eighth detection transverse hole 18, the ninth detection transverse hole 19, the tenth detection transverse hole 110 and the eleventh detection transverse hole 210 and the first detection top surface 10 are 65 mm, 80 mm, 10 mm, 30 mm, 50 mm, 70 mm, 90 mm, 110 mm, 130 mm, 150 mm and 20 mm respectively.

[0045] It should be noted that the first detection transverse hole 11, the second detection transverse hole 12, the eleventh detection transverse hole 210 and the detection transverse hole group are symmetrically distributed to improve the detection efficiency of the 9 symmetrically distributed probes 5 in the rail detection wheel 4. The eleventh detection transverse hole 210 is arranged on the ninth detection step 29 and the first detection step 21 to avoid too small spacing between the third detection transverse hole 13, the eleventh detection transverse hole 210 and the fourth detection transverse hole 14, which may cause mutual interference and affect the detection results.

[0046] In this embodiment, the distances between the lower surfaces of the steps of the first detection step 21, the second detection step 22, the third detection step 23, the fourth detection step 24, the fifth detection step 25, the sixth detection step 26, the seventh detection step 27 and the eighth detection step 28 and the second detection top surface 20 are 40 mm, 100 mm, 30 mm, 80 mm, 50 mm, 20 mm, 10 mm and 150 mm respectively.

[0047] It should be noted that the stepped heights of the first detection step 21, the second detection step 22, the third detection step 23, the fourth detection step 24, the fifth detection step 25, the sixth detection step 26, the seventh detection step 27 and the eighth detection step 28 are staggered. One reason is to reduce the mutual interference of the detection results, and the other reason is to keep the test block balanced and stable.

[0048] In this embodiment, the special test block in which the panel-type detection plate 1 and the stepped detection plate 2 are processed and made into one body is a No. 20 low-carbon steel special test block, and the grain size of the special test block in which the panel-type detection plate 1 and the stepped detection plate 2 are processed and made into one body is 7-8 grades.

[0049] When the utility model is in use, the rail detection wheel moves while pressing on the second detection top surface 20, and the step-type detection plate is used to detect the distance amplitude characteristic of the 0° probe. The rail detection wheel moves while pressing on the first detection top surface 10 to perform the detection work of 65mm, 80mm, 10mm, 30mm, 50mm, 70mm, 90mm, 110mm, 130mm and 150mm for the front 37° probe, front 70° probe, rear 37° probe and rear 70° probe. The rail detection wheel moves while pressing on the second detection top surface 20 to perform the detection work of 20mm for the front 37° probe, front 70° probe, rear 37° probe and rear 70° probe; the inclination angle of the 70° probe when the rail detection wheel tilts forward and backward is a. Rotate the rail detection wheel to the left by an angle of a, and then move the rail detection wheel in sequence to make the front right inclined 70° probe and the rear left inclined 70° probe to perform the detection work of 20mm for the front right inclined 70° probe and the rear left inclined 70° probe. Keep the angle of the rail detection wheel unchanged and translate it to the first detection top surface 10 to perform the detection work of 65mm, 80mm, 10mm, 30mm, 50mm, 70mm, 90mm, 110mm, 130mm and 150mm; finally, rotate the rail detection wheel to the right by 2a angles, and then move the rail detection wheel in sequence to make the front left inclined 70° probe and the rear right inclined 70° probe to perform the detection work of 65mm, 80mm, 10mm, 30mm, 50mm, 70mm, 90mm, 110mm, 130mm and 150mm. Keep the angle of the rail detection wheel unchanged and translate it to the second detection top surface 20 to perform the detection work of 20mm.

[0050] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A special test block for detecting the distance-amplitude characteristics of a rail-wheel probe, characterized in that: It includes a panel - type detection board (1) and a stepped detection board (2) integrally and juxtaposedly connected to the panel - type detection board (1). The first detection top surface (10) of the panel - type detection board (1) and the second detection top surface (20) of the stepped detection board (2) are coplanar and have the same structure. A first detection transverse hole (11) is provided at the middle - upper position of the panel - type detection board (1). A column of detection transverse - hole groups is symmetrically provided from top to bottom at both sides of the panel - type detection board (1). A second detection transverse hole (12) is provided at the position between the first detection transverse hole (11) and the detection transverse - hole groups on the panel - type detection board (1). The stepped detection board (2) includes a first detection step (21), a second detection step (22), a third detection step (23), a fourth detection step (24), a fifth detection step (25), a sixth detection step (26), a seventh detection step (27), an eighth detection step (28), and a ninth detection step (29) connected in sequence. The distances between the lower surfaces of the steps of the first detection step (21), the second detection step (22), the third detection step (23), the fourth detection step (24), the fifth detection step (25), the sixth detection step (26), the seventh detection step (27), and the eighth detection step (28) and the second detection top surface (20) are not equal to each other. The lower surface of the step of the ninth detection step (29) is at the same height as the lower surface of the step of the first detection step (21). An eleventh detection transverse hole (210) with the same height is provided on both the ninth detection step (29) and the first detection step (21). The distances between the central axes of the first detection transverse hole (11), the second detection transverse hole (12), the eleventh detection transverse hole (210), and each detection transverse hole in the detection transverse - hole group and the first detection top surface (10) are not equal to each other.

2. The special test block for detecting the distance-amplitude characteristic of a rail wheel probe according to claim 1, characterized in that: The detection transverse - hole group includes a third detection transverse hole (13), a fourth detection transverse hole (14), a fifth detection transverse hole (15), a sixth detection transverse hole (16), a seventh detection transverse hole (17), an eighth detection transverse hole (18), a ninth detection transverse hole (19), and a tenth detection transverse hole (110) provided in sequence from top to bottom.

3. The special test block for detecting the distance-amplitude characteristic of a rail-wheel probe according to claim 1, wherein: A clamping groove (3) is provided at the middle - lower position on the lower side of the panel - type detection board (1).

4. A special test block for detecting the distance-amplitude characteristic of a rail-wheel probe according to claim 1, characterized in that: The sum of the widths of the panel - type detection board (1) and the stepped detection board (2) is greater than the width of the rail detector (4).

5. A special test block for detecting the distance-amplitude characteristic of a rail wheel probe according to claim 2, characterized in that: The diameters of the first inspection transverse hole (11), the second inspection transverse hole (12), the eleventh inspection transverse hole (210), and each inspection transverse hole in the inspection transverse hole group are 3 mm. The distances between the central axes of the first inspection transverse hole (11), the second inspection transverse hole (12), the third inspection transverse hole (13), the fourth inspection transverse hole (14), the fifth inspection transverse hole (15), the sixth inspection transverse hole (16), the seventh inspection transverse hole (17), the eighth inspection transverse hole (18), the ninth inspection transverse hole (19), the tenth inspection transverse hole (110), and the eleventh inspection transverse hole (210) and the first inspection top surface (10) are 65 mm, 80 mm, 10 mm, 30 mm, 50 mm, 70 mm, 90 mm, 110 mm, 130 mm, 150 mm, and 20 mm, respectively.

6. A special test block for detecting the distance-amplitude characteristic of a rail wheel probe according to claim 1, characterized in that: The distances between the lower surfaces of the steps of the first inspection step (21), the second inspection step (22), the third inspection step (23), the fourth inspection step (24), the fifth inspection step (25), the sixth inspection step (26), the seventh inspection step (27), and the eighth inspection step (28) and the second inspection top surface (20) are 40 mm, 100 mm, 30 mm, 80 mm, 50 mm, 20 mm, 10 mm, and 150 mm, respectively.

7. A special test block for detecting the distance-amplitude characteristic of a rail-wheel probe according to claim 1, characterized in that: The special test block in which the panel-type inspection plate (1) and the step-type inspection plate (2) are processed and made into one body is a No. 20 low-carbon steel special test block, and the grain size of the special test block in which the panel-type inspection plate (1) and the step-type inspection plate (2) are processed and made into one body is 7-8 grades.

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