Integrated scanning probe for welding seam and rail bottom of steel rail

Abstract

The utility model relates to the technical field of scanning probes, in particular to a steel rail welding seam rail bottom integrated scanning probe which comprises a groove cavity formed in the bottom of an outer shell, at least one probe module is sleeved with the groove cavity in a matched mode, a probe line extends upwards in each probe module, the probe lines penetrate through a guide column body, and a spring is sleeved with the periphery of a guide column. The bottom of the spring abuts against the top of the probe module, the top of the spring abuts against the top wall of the groove cavity, and the spring stretches out and draws back to drive the probe module to move up and down in the groove cavity, so that the probe module fully abuts against the slope of the steel rail bottom, and the problems that steel rail welding seam rail bottom flaw detection is low in work efficiency, large in work labor intensity and low in flaw detection precision are solved. The scanning probe has the advantages that the flaw detection efficiency is high, the accuracy is high, and the quality of the flaw detection operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scanning probes, in particular to an integrated scanning probe for the bottom of a rail weld joint. Background Art

[0002] Ultrasonic testing is often used for flaw detection of the bottom of rail weld joints, and a single probe is used for reflective scanning.

[0003] Currently, a single K2.5 probe is used for manual scanning in the flaw detection of the bottom of rail weld joints. According to the operation requirements, the single K2.5 scanning of the rail bottom is divided into 4 scanning surfaces, and each scanning surface is divided into 6 scanning areas. The probe is placed on the slope of the rail bottom and deflected by a certain angle to perform reciprocating scanning on areas 1-6 respectively. At least 24 reciprocating scans are required for the rail bottom scanning; the operation efficiency is extremely low, and the labor intensity of the operators is high. During scanning, the probe needs to be placed straight or deflected by a certain angle, such as 8 degrees, 10 degrees, 15 degrees, on the slope of the rail bottom for reciprocating scanning. However, the deflection angle of the probe depends entirely on the self-feeling of the operator, and the accuracy of the deflection angle cannot be guaranteed, seriously affecting the quality of flaw detection operations.

[0004] Therefore, the applicant proposes an integrated scanning probe for the bottom of a rail weld joint to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an integrated scanning probe for the bottom of a rail weld joint, which solves the problems of low operation efficiency, high labor intensity, and low flaw detection accuracy in the flaw detection of the bottom of rail weld joints in the background art, seriously affecting the quality of flaw detection operations.

[0006] To solve the above technical problems, the utility model provides an integrated scanning probe for the bottom of a rail weld joint, including a groove cavity is arranged at the bottom of the outer shell body, at least one probe module is adaptively sleeved in the groove cavity, a probe wire extends upward inside each probe module, the probe wire penetrates through the guide post body, a spring is sleeved on the outer periphery of the guide post, the bottom of the spring abuts against the top of the probe module, and the top of the spring abuts against the top wall of the groove cavity. The spring expansion and contraction drive the probe module to move up and down in the groove cavity, so that the probe module fully abuts against the slope of the rail bottom.

[0007] A further improvement of the technical solution of the utility model lies in that: the probe module is a convex body, and the structure of the probe module is set to be smaller at the top and larger at the bottom to adapt to the groove cavity.

[0008] A further improvement of the technical solution of the utility model lies in that: a guide post is arranged at the top of the probe module, and there is a gap between the guide post and the outer shell body.

[0009] A further improvement of the technical solution of the utility model lies in that: a lock nut is sleeved on the upper part of the guide post; when the probe module moves downward, it drives the guide post to move downward until the lower surface of the lock nut abuts against the inner wall of the outer shell body.

[0010] A further improvement of the technical solution of the present utility model lies in that: the probe wire extends upward out of the outer housing and a probe plug is provided at the free end, and the probe plug is connected to the flaw detector.

[0011] A further improvement of the technical solution of the present utility model lies in that: the probe wire extends upward out of the outer housing and a probe plug is provided at the free end, and the probe plug is connected to the flaw detector.

[0012] A further improvement of the technical solution of the present utility model lies in that: a plurality of sub-probes are arranged in the probe module.

[0013] A further improvement of the technical solution of the present utility model lies in that: 2 to 6 sub-probes are provided, and the refraction angles of each sub-probe are all 60 to 70 degrees and the emission directions are the same.

[0014] A further improvement of the technical solution of the present utility model lies in that: the sub-probes are placed parallel to the bottom center line of the probe module or at a deflected angle; when placed at a deflected angle, the deflection angle is 5 to 30 degrees.

[0015] A further improvement of the technical solution of the present utility model lies in that: the bottom of the probe module is a slope, and the inclination angle of the bottom slope of the probe module is adapted to the rail bottom slope.

[0016] Adopting the above technical solution, the present utility model has the following beneficial effects:

[0017] 1. A rail weld bottom integrated scanning probe provided by the present utility model, in which 2 to 6 sub-probes are arranged in the probe module of the scanning probe, the refraction angles of the sub-probes are all 60 to 70 degrees and the emission directions are the same, and the sub-probes are placed parallel or at a deflected angle, which increases the scanning area, reduces the number of scans, improves the work efficiency, and reduces the labor intensity of the operation.

[0018] 2. A rail weld bottom integrated scanning probe provided by the present utility model, in which the probe module in the scanning probe can move under the action of a spring, and the bottom of the probe module is inclined so that the probe module fully adheres to the rail bottom slope. Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front view cross-sectional view of a rail weld bottom integrated scanning probe provided by the present utility model;

[0021] Figure 2 It is a side view of an integrated bottom surface scanning probe for rail welds;

[0022] Figure 3 It is Figure 1 the front view of components such as the probe module, guiding column and spring in

[0023] Figure 4 It is Figure 1 the bottom view schematic diagram when there are 4 sub - probes in the probe module in

[0024] Figure 5 It is Figure 1 the side view of the probe module in

[0025] Figure 6 It is a side - view sectional view of an integrated bottom surface scanning probe for rail welds.

[0026] Reference numerals: 1. Probe module; 2. Guiding column; 3. Spring; 4. Lock nut; 5. Sub - probe; 6. Probe wire; 7. Probe plug; 8. Outer housing; 81. Grooved cavity. Detailed implementation manners

[0027] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The present utility model will be further explained and illustrated in conjunction with specific embodiments below.

[0031] As Figures 1-6 shown, where Figure 1 and Figure 3 are views in the running direction of the probe, Figure 2 and Figure 5 and Figure 6 are diagrams in the direction perpendicular to the running direction of the probe. A rail weld bottom integrated scanning probe provided in this embodiment includes a groove cavity 81 provided at the bottom of an outer housing 8. The groove cavity 81 is adapted to be sleeved with at least one probe module 1, preferably 2. A plurality of sub-probes 5 are provided in each probe module 1. The number of sub-probes 5 can be 2 to 6, and preferably the number of sub-probes is 4. The refraction angles of each sub-probe are all 60 to 70 degrees and the emission directions are the same. The sub-probes 5 are placed parallel to the bottom center line of the probe module 1 or at a deflection angle. When placed at a deflection angle, the deflection angle is 5 to 30 degrees, that is, the angle between the deflected sub-probe 5 and the bottom center line of the probe module 1 is 5 to 30 degrees. The settings of the number of sub-probes 5, the refraction angle, and the deflection angle increase the scanning area, reduce the number of scans, and improve the working efficiency, accuracy, and quality of the flaw detection operation.

[0032] In this embodiment, a spring 3 is sleeved on the outer periphery of the guide post 2. The bottom of the spring 3 abuts against the top of the probe module 1, and the top of the spring 3 abuts against the top wall of the groove cavity 81. Preferably, the spring 3 is conical to reduce the volume after compression of the spring 3. The telescopic movement of the spring 3 drives the probe module 1 to move up and down in the groove cavity 81, so that the probe module 1 fully abuts against the bottom slope of the rail. A guide post 2 is arranged at the top of the probe module 1. There is a gap between the guide post 2 and the outer housing 8, which facilitates the up and down movement of the guide post 2 in the housing 8 and drives the probe module 1 to move up and down in the groove cavity 81 under the action of the spring 3. Moreover, the bottom of the probe module 1 is beveled, and the inclination angle of the bottom bevel of the probe module 1 is adapted to the rail bottom slope, so that the probe module 1 fully abuts against the bottom slope of the rail. The probe module 1 is a convex body, and the structure of the probe module 1 is set to be smaller at the top and larger at the bottom to fit the groove cavity 81, which is convenient for the up and down movement of the probe module 1 in the groove cavity 81. A guide post 2 is arranged at the top of the probe module 1, and a lock nut 4 is sleeved on the upper part of the guide post 2. When the probe module 1 moves downward, it drives the guide post 2 to move downward until the lower surface of the lock nut 4 abuts against the inner wall of the outer housing 8. The probe module 1 is a convex body, and the structure of the probe module 1 is set to be smaller at the top and larger at the bottom to fit the groove cavity 81. The upper part of the probe module 1 is properly sleeved in the groove cavity 81, and the outer wall of the lower part of the probe module 1 is aligned with the outer wall of the outer housing 8, reducing the overall volume of the probe. The convex shape of the probe module 1, smaller at the top and larger at the bottom, provides a limit for the upward movement of the probe module 1. The setting of the lock nut 4 provides a limit for the downward movement of the probe module 1, enables the spring 3 to move within the working stroke, and prevents the probe module 1 from sliding out of the groove cavity 81 when moving downward and falling off.

[0033] In this embodiment, a probe wire 6 extends upward inside each probe module 1. The probe wire 6 extends upward out of the guide post 2 and the outer housing 8 in sequence and a probe plug 7 is arranged at the free end. The probe plug 7 is connected to the flaw detector. Each sub-probe 5 is connected to the probe plug 7 through the probe wire 6, and then the probe plug 7 is connected to an ultrasonic flaw detector (not shown in the figure). Each sub-probe 5 emits and receives ultrasonic waves under the drive of the ultrasonic flaw detector.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated inspection probe for the bottom of the rail weld, characterized in that It includes a groove cavity (81) provided at the bottom of the outer housing (8). The groove cavity (81) is adapted to be sleeved with at least one probe module (1). Inside each probe module (1), a probe wire (6) extends upward. The probe wire (6) penetrates through the body of the guide post (2). A spring (3) is sleeved on the outer periphery of the guide post (2). The bottom of the spring (3) abuts against the top of the probe module (1), and the top of the spring (3) abuts against the top wall of the groove cavity (81). The telescopic movement of the spring (3) drives the probe module (1) to move up and down in the groove cavity (81), so that the probe module (1) fully abuts against the slope of the bottom surface of the rail.

2. The integrated inspection probe for the bottom of rail weld according to claim 1, characterized in that, The probe module (1) is a convex body, and the structure of the probe module (1) is set to be smaller at the top and larger at the bottom to fit the groove cavity (81).

3. The integrated inspection probe for the bottom of the rail weld according to claim 1, characterized in that, A guide post (2) is provided at the top of the probe module (1), and there is a gap between the guide post (2) and the outer housing (8).

4. The integrated inspection probe for the bottom of rail weld according to claim 3, characterized in that, A lock nut (4) is sleeved on the upper part of the guide post (2). When the probe module (1) moves downward, it drives the guide post (2) to move downward until the lower surface of the lock nut (4) abuts against the inner wall of the outer housing (8).

5. The integrated inspection probe for the bottom of the rail weld according to claim 1, characterized in that The probe wire (6) extends upward out of the outer housing (8) and a probe plug (7) is provided at the free end. The probe plug (7) is connected to the flaw detector.

6. The integrated inspection probe for the bottom of the rail weld according to claim 1, characterized in that, A number of sub-probes (5) are provided inside the probe module (1).

7. The integrated inspection probe for the bottom of the rail weld according to claim 6, characterized in that There are 2 to 6 sub-probes (5), and the refraction angles of each sub-probe are all 60 to 70 degrees and the emission directions are the same.

8. The integrated inspection probe for the bottom of rail weld according to claim 6, characterized in that, The sub-probes (5) are placed parallel to the bottom center line of the probe module (1), or at a deflection angle; when placed at a deflection angle, the deflection angle is 5 to 30 degrees.

9. The integrated inspection probe for the bottom of the rail weld according to claim 1, characterized in that, The bottom of the probe module (1) is an inclined surface, and the inclination angle of the bottom inclined surface of the probe module (1) is adapted to the rail bottom slope.

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