Special test block for detecting refraction angle and deviation angle of steel rail wheel type probe
By designing special test blocks, using the specific hole positions and apertures of the cuboid and semi-cylinder test blocks, complex detection problems in the prior art are solved, and efficient detection of the refractive angle and deflection angle of the rail wheel probe is achieved.
Patent Information
- Application Number
- CN202422308384.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-22
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-22
AI Technical Summary
The prior art lacks effective detection means to simultaneously detect the refractive angle and deflection angle of rail wheel probes, and the existing test block design is complex and difficult to efficiently measure.
A special test block including a rectangular and semi-cylinder test block is designed. Through the design of specific apertures and hole positions, it is used to detect the deflection angle of the 0° probe and the refractive angle and deflection angle of the 37° and 70° probes, respectively, to simplify the detection process.
It realizes efficient detection of the refractive angle and deflection angle of the rail wheel probe, simplifies the measurement process and improves the detection efficiency.
Smart Images
Figure CN223180150U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detecting the refraction angle and deflection angle of a probe, and particularly relates to a special test block for detecting the refraction angle and deflection angle of a rail wheel type probe. Background Art
[0002] At present, in China, double-rail ultrasonic detection equipment is adopted to detect the double tracks of a railway simultaneously. The double-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 a fixed curved surface in a flexible tire filled with a coupling liquid, as shown in Figure 1 . At present, there are only test blocks for detecting the refraction angle and deflection angle of a single probe, and different test holes are used for different refraction angles, making the measurement complex. There is no effective detection means for detecting the refraction angle and deflection angle of a rail wheel type probe. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a special test block for detecting the refraction angle and deflection angle of a rail wheel type probe aiming at the deficiencies in the above-mentioned prior art. The design is novel and reasonable. The semi-cylindrical test block is used to determine the incident points of the 0°, 37°, and 70° probes in the wheel type probe, and is also used to detect the deflection angles of the 37° and 70° probes. The fifth detection horizontal hole is used to detect the deflection angle of the 0° probe. The first detection horizontal hole, the second detection horizontal hole, the third detection horizontal hole, and the fourth detection horizontal hole on the cuboid test block are used to detect the refraction angles of the 37° and 70° probes. The detection effect is good and it is convenient to popularize and use.
[0004] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A special test block for detecting the refraction angle and deflection angle of a rail wheel type probe, characterized in that: it includes a rectangular parallelepiped test block and a semi-cylindrical test block integrally and side-by-side connected to the rectangular parallelepiped test block. One semi-circular surface of the semi-cylindrical test block is integrally connected to the front side surface of the rectangular parallelepiped test block. The top surface of the rectangular parallelepiped test block is the first detection top surface of the rectangular parallelepiped test block, and the rectangular side surface of the semi-cylindrical test block is the second detection top surface of the semi-cylindrical test block. The first detection top surface and the second detection top surface are coplanar and have the same structure. The height of the rectangular parallelepiped test block is greater than the height of the semi-cylindrical test block. A fifth detection transverse hole for detecting the deflection angle of the 0° probe is opened at the central position of the lower part of the rectangular parallelepiped test block. A first detection transverse hole and a second detection transverse hole are symmetrically arranged on both sides of the upper part of the rectangular parallelepiped test block. Third detection transverse holes and fourth detection transverse holes are symmetrically arranged on both sides of the area between the first detection transverse hole and the fifth detection transverse hole on the rectangular parallelepiped test block.
[0005] For the above-mentioned special test block for detecting the refraction angle and deflection angle of a rail wheel type probe, it is characterized in that: a bottom plate is provided at the bottom of the rectangular parallelepiped test block. The length of the bottom plate is equal to the length of the rectangular parallelepiped test block, and the width of the bottom plate is equal to the sum of the widths of the rectangular parallelepiped test block and the semi-cylindrical test block.
[0006] For the above-mentioned special test block for detecting the refraction angle and deflection angle of a rail wheel type probe, it is characterized in that: the sum of the widths of the first detection top surface and the second detection top surface is greater than the width of the rail detection wheel.
[0007] For the above-mentioned special test block for detecting the refraction angle and deflection angle of a rail wheel type probe, it is characterized in that: the height of the semi-cylindrical test block is 75 mm, the aperture of the fifth detection transverse hole is 3 mm, the central hole depth of the fifth detection transverse hole is 80 mm, the apertures of the first detection transverse hole, the second detection transverse hole, the third detection transverse hole and the fourth detection transverse hole are all 1.5 mm, the central hole depths of the first detection transverse hole and the second detection transverse hole are both 20 mm, and the central hole depths of the third detection transverse hole and the fourth detection transverse hole are both 50 mm; the widths of the first detection top surface and the second detection top surface are both 40 mm.
[0008] The above-mentioned special test block for detecting the refraction angle and deflection angle of a rail wheel probe is characterized in that: the central axis of the first detection transverse hole and the central line in the width direction at the top of the first detection top surface form a first plane, the central axis of the second detection transverse hole and the central line in the width direction at the top of the first detection top surface form a second plane, the central axis of the third detection transverse hole and the central line in the width direction at the top of the first detection top surface form a third plane, the central axis of the fourth detection transverse hole and the central line in the width direction at the top of the first detection top surface form a fourth plane, the included angle between the first plane and the second plane is 140°, and the included angle between the third plane and the fourth plane is 74°; the distances between the central axes of the first detection transverse hole and the second detection transverse hole and the central vertical section in the width direction of the cuboid test block are both 54.95 mm, and the distances between the central axes of the third detection transverse hole and the fourth detection transverse hole and the central vertical section in the width direction of the cuboid test block are both 37.68 mm.
[0009] The above-mentioned special test block for detecting the refraction angle and deflection angle of a rail wheel probe is characterized in that: the bottom plate, the cuboid test block and the semi-cylindrical test block are processed into an integrated special test block, which is a No. 20 low-carbon steel special test block, and the grain size of the No. 20 low-carbon steel special test block is 7-8 grades.
[0010] The beneficial effect of the present invention is that the design is novel and reasonable. The semi-cylindrical test block is used to determine the incident points of the 0°, 37° and 70° probes in the wheel probe, and is also used to detect the deflection angles of the 37° and 70° probes. The fifth detection transverse hole is used to detect the deflection angle of the 0° probe. The first detection transverse hole, the second detection transverse hole, the third detection transverse hole and the fourth detection transverse hole on the cuboid test block are used to detect the refraction angles of the 37° and 70° probes. The detection effect is good, the efficiency is high, and it is convenient to popularize and use.
[0011] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings
[0012] Figure 1 It is a usage state diagram of the present invention.
[0013] Figure 2 It is a structural schematic diagram of the present invention.
[0014] Figure 3 It is Figure 2 the rear view of
[0015] Figure 4 It is a dimension marking diagram of the present invention.
[0016] Figure 5 It is Figure 4 the A-A sectional view of
[0017] Figure 6 This is the layout diagram of the nine probes of the utility model.
[0018] Description of the accompanying drawings:
[0019] 1—base plate; 2—rectangular test block; 3—semi-cylindrical test block;
[0020] 4—rail detection wheel; 5—probe; 20—first detection top surface;
[0021] 21—first detection horizontal hole; 22—second detection horizontal hole; 23—third detection horizontal hole;
[0022] 24—Fourth detection horizontal hole; 25—Fifth detection horizontal hole; 30—Second detection top surface. DETAILED DESCRIPTION
[0023] like Figures 1 to 6 As shown, the utility model includes a rectangular test block 2 and a semi-cylindrical test block 3 integrally connected to the rectangular test block 2 side by side, a semicircular surface of the semi-cylindrical test block 3 is integrally connected to the front side of the rectangular test block 2, the top surface of the rectangular test block 2 is the first detection top surface 20 of the rectangular test block 2, and the rectangular side surface of the semi-cylindrical test block 3 is the second detection top surface 30 of the semi-cylindrical test block 3, the first detection top surface 20 and the second detection top surface 30 are coplanar and have the same structure, the height of the rectangular test block 2 is greater than the height of the semi-cylindrical test block 3, a fifth detection horizontal hole 25 for detecting the deflection angle of the 0° probe is opened at the center position of the lower part of the rectangular test block 2, a first detection horizontal hole 21 and a second detection horizontal hole 22 are opened on both sides of the upper part of the rectangular test block 2 in a symmetrical structure, and a third detection horizontal hole 23 and a fourth detection horizontal hole 24 are opened on both sides of the area between the first detection horizontal hole 21 and the fifth detection horizontal hole 25 on the rectangular test block 2 in a symmetrical structure.
[0024] In this embodiment, a bottom plate 1 is provided at the bottom of the rectangular test block 2 . The length of the bottom plate 1 is equal to the length of the rectangular test block 2 , and the width of the bottom plate 1 is equal to the sum of the widths of the rectangular test block 2 and the semi-cylindrical test block 3 .
[0025] In this embodiment, the sum of the widths of the first detection top surface 20 and the second detection top surface 30 is greater than the width of the rail detection wheel 4 .
[0026] like Figure 1 and Figure 6 As 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 oblique 70° probe, a front right oblique 70° probe, a rear left oblique 70° probe, and a rear right oblique 70° probe.
[0027] In this embodiment, the height of the semi-cylindrical test block 3 is 75 mm, the aperture of the fifth detection transverse hole 25 is 3 mm, the central hole depth of the fifth detection transverse hole 25 is 80 mm, the apertures of the first detection transverse hole 21, the second detection transverse hole 22, the third detection transverse hole 23 and the fourth detection transverse hole 24 are all 1.5 mm, the central hole depths of the first detection transverse hole 21 and the second detection transverse hole 22 are both 20 mm, and the central hole depths of the third detection transverse hole 23 and the fourth detection transverse hole 24 are both 50 mm; the widths of the first detection top surface 20 and the second detection top surface 30 are both 40 mm.
[0028] In this embodiment, the central axis of the first detection transverse hole 21 and the center line in the top width direction of the first detection top surface 20 form a first plane, the central axis of the second detection transverse hole 22 and the center line in the top width direction of the first detection top surface 20 form a second plane, the central axis of the third detection transverse hole 23 and the center line in the top width direction of the first detection top surface 20 form a third plane, the central axis of the fourth detection transverse hole 24 and the center line in the top width direction of the first detection top surface 20 form a fourth plane, the included angle between the first plane and the second plane is 140°, and the included angle between the third plane and the fourth plane is 74°; the distances between the central axes of the first detection transverse hole 21 and the second detection transverse hole 22 and the central vertical section in the width direction of the cuboid test block 2 are both 54.95 mm, and the distances between the central axes of the third detection transverse hole 23 and the fourth detection transverse hole 24 and the central vertical section in the width direction of the cuboid test block 2 are both 37.68 mm.
[0029] In this embodiment, the special test block formed by integrally processing the bottom plate 1, the cuboid test block 2 and the semi-cylindrical test block 3 is a No. 20 low-carbon steel special test block, and the grain size of the No. 20 low-carbon steel special test block is 7-8 grades.
[0030] When the utility model is used, the incident points of the 0°, 37° and 70° probes in the wheel probe are determined by using the semi-cylindrical test block. The fifth detection transverse hole is used to detect the deflection angle of the 0° probe and is also used to detect the deflection angles of the 37° and 70° probes. After the detection of the deflection angles of the 37° and 70° probes is completed, the rail detector is translated backward to the first detection top surface, and the 37° probe and the 70° probe are respectively made to obtain the reflected waves of the corresponding detection transverse holes. Then, by moving the rail detector left and right respectively, the reflected waves of the 37° probe and the 70° probe for the detection transverse holes are maximized, and the distances of moving left or right are recorded respectively. According to the left and right moving distances, the tangent value of the included angle between the ultrasonic incident sound beam of the probe and the normal line is first obtained, and finally the refraction angles of the 37° probe and the 70° probe are inversely calculated. The refraction angles of the 37° and 70° probes are detected by using the first detection transverse hole, the second detection transverse hole, the third detection transverse hole and the fourth detection transverse hole on the cuboid test block, and the detection effect is good.
[0031] The above are only the preferred embodiments of the present utility model, and do not impose any limitations on the present utility model. Any simple modifications, changes, and equivalent structural changes made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe, characterized in that: The invention comprises a rectangular parallelepiped test block (2) and a semi-cylindrical test block (3) integrally connected to the rectangular parallelepiped test block (2), wherein a semi-circular surface of the semi-cylindrical test block (3) is integrally connected to the front side surface of the rectangular parallelepiped test block (2), the top surface of the rectangular parallelepiped test block (2) is a first detection top surface (20) of the rectangular parallelepiped test block (2), the rectangular side surface of the semi-cylindrical test block (3) is a second detection top surface (30) of the semi-cylindrical test block (3), the first detection top surface (20) and the second detection top surface (30) are coplanar and have the same structure, and the rectangular parallelepiped test block The height of the rectangular test block (2) is greater than the height of the semi-cylindrical test block (3); a fifth detection horizontal hole (25) for detecting the deflection angle of the 0° probe is provided at the center of the lower portion of the rectangular test block (2); a first detection horizontal hole (21) and a second detection horizontal hole (22) are provided on both sides of the upper portion of the rectangular test block (2) in a symmetrical structure; and a third detection horizontal hole (23) and a fourth detection horizontal hole (24) are provided on both sides of the region between the first detection horizontal hole (21) and the fifth detection horizontal hole (25) on the rectangular test block (2) in a symmetrical structure.
2. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe according to claim 1, characterized in that: A bottom plate (1) is provided at the bottom of the rectangular parallelepiped test block (2); the length of the bottom plate (1) is equal to the length of the rectangular parallelepiped test block (2); and the width of the bottom plate (1) is equal to the sum of the widths of the rectangular parallelepiped test block (2) and the semi-cylindrical test block (3).
3. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe according to claim 1, characterized in that: The sum of the widths of the first detection top surface (20) and the second detection top surface (30) is greater than the width of the rail detection wheel (4).
4. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe according to claim 1, characterized in that: The height of the semi-cylindrical test block (3) is 75 mm, the aperture of the fifth detection transverse hole (25) is 3 mm, the center hole depth of the fifth detection transverse hole (25) is 80 mm, the apertures of the first detection transverse hole (21), the second detection transverse hole (22), the third detection transverse hole (23) and the fourth detection transverse hole (24) are all 1.5 mm, the center hole depths of the first detection transverse hole (21) and the second detection transverse hole (22) are both 20 mm, and the center hole depths of the third detection transverse hole (23) and the fourth detection transverse hole (24) are both 50 mm; the widths of the first detection top surface (20) and the second detection top surface (30) are both 40 mm.
5. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe according to claim 4, characterized in that: The central axis of the first detection transverse hole (21) and the center line in the top width direction of the first detection top surface (20) form a first plane, the central axis of the second detection transverse hole (22) and the center line in the top width direction of the first detection top surface (20) form a second plane, the central axis of the third detection transverse hole (23) and the center line in the top width direction of the first detection top surface (20) form a third plane, the central axis of the fourth detection transverse hole (24) and the center line in the top width direction of the first detection top surface (20) form a fourth plane, the included angle between the first plane and the second plane is 140°, and the included angle between the third plane and the fourth plane is 74°; the distances between the central axes of the first detection transverse hole (21) and the second detection transverse hole (22) and the central vertical section in the width direction of the cuboid test block (2) are both 54.95 mm, and the distances between the central axes of the third detection transverse hole (23) and the fourth detection transverse hole (24) and the central vertical section in the width direction of the cuboid test block (2) are both 37.68 mm.
6. A special test block for detecting the refraction angle and deflection angle of a rail wheel probe according to claim 2, characterized in that: The special test block in which the bottom plate (1), the cuboid test block (2) and the semi-cylindrical test block (3) are processed and made into one body is a No. 20 low-carbon steel special test block, and the grain size of the No. 20 low-carbon steel special test block is 7-8 grades.