Steel rail flaw detector probe frame capable of detecting transverse position of probe

Abstract

The utility model belongs to the technical field of steel rail nondestructive inspection, and discloses a steel rail flaw detector probe frame capable of detecting the transverse position of a probe, which comprises a probe frame hook, an adjusting screw rod, a sliding block, a probe frame and a probe transverse position measuring device, when the adjusting lead screw rotates, the driving sliding block transversely moves along the adjusting lead screw, and then the probe frame is driven to transversely move; a probe transverse position measuring device is arranged outside the probe frame hook; and the detection end of the probe transverse position measuring device is fixedly connected with one end of the adjusting screw rod. According to the steel rail flaw detector probe frame capable of detecting the transverse position of the probe, the transverse position of the probe can be detected in real time by arranging the probe transverse position measuring device, so that the transverse position of the probe can be monitored in real time, on one hand, the standardized operation process can be guaranteed, and the flaw detection operation quality can be improved; on the other hand, the detection result of the track flaw detection operation can be accurately analyzed.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing technology for rails, specifically to a probe holder for a rail flaw detector that can detect the lateral position of the probe. Background Technology

[0002] With the continuous development of science and technology and the continuous improvement of the national economy, heavy-haul railways have gradually become the main content and development trend of long-distance, high-quality, and low-cost transportation. A certain proportion of railway lines are curved tracks, especially in mountainous areas where the railway lines often meander and twist, resulting in a large number of curved tracks, sometimes even exceeding the length of straight tracks.

[0003] To ensure the safety of trains traveling on railway switches and curved tracks, rail flaw detectors are needed to regularly inspect curved tracks and promptly detect defects, thereby ensuring the train's transport capacity.

[0004] In the existing technology, when performing flaw detection on curved tracks, the flaw detection operator needs to manually adjust the lateral position of the probe so that the probe is located in the corresponding scanning area on the rail surface to complete the track flaw detection operation in the corresponding scanning area.

[0005] The above-mentioned method for flaw detection on curved tracks has the following problems: The probe's mounting position on the rail flaw detector is a crucial installation parameter, directly affecting the detection location and thus the analysis results. However, after the flaw detection personnel adjust the probe position, the main unit of the rail flaw detector cannot accurately obtain the probe's position, further impacting the analysis results. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a rail flaw detector probe holder capable of detecting the lateral position of the probe, which can effectively solve the above problems.

[0007] The technical solution adopted in this utility model is as follows:

[0008] This utility model provides a rail flaw detector probe frame that can detect the lateral position of the probe, including a probe frame hook (1), an adjusting screw (2), a slider (3), a probe frame (4), and a probe lateral position measuring device (5);

[0009] The probe frame hook (1) is fixedly installed at the corresponding position of the rail flaw detector; the adjusting screw (2) is rotatably installed inside the probe frame hook (1); the slider (3) is sleeved on the outside of the adjusting screw (2); the probe frame (4) is hinged to the lower part of the slider (3); when the adjusting screw (2) rotates, it drives the slider (3) to move laterally along the adjusting screw (2), thereby driving the probe frame (4) to move laterally;

[0010] The probe lateral position measuring device (5) is mounted on the outside of the probe holder hook (1); the detection end of the probe lateral position measuring device (5) is fixedly connected to one end of the adjusting screw (2).

[0011] Preferably, the probe lateral position measuring device (5) includes a housing (501), a potentiometer (502), a potentiometer knob (503), and a cable (504);

[0012] The outer casing (501) is secured to the outside of the probe holder hook (1); the potentiometer (502) is fixedly installed inside the outer casing (501), the detection end of the potentiometer (502) is rotatably mounted with the potentiometer knob (503), the other end of the potentiometer knob (503) is fastened to one end of the adjusting screw (2); the output end of the potentiometer (502) is fixedly connected to one end of the cable (504); the other end of the cable (504) is connected to the main unit of the rail flaw detector.

[0013] Preferably, the outer shell (501) includes a lower seat (5011) and an upper seat (5012);

[0014] The potentiometer (502) is fixedly installed inside the lower body (5011); clamping arms (50111) are integrally formed on both sides of the lower body (50111), and the clamping arms (50111) on both sides have clamping grooves (50112) that match the side plates of the probe frame hook (1); the lower body (50111) is clamped and installed on the outside of the side plates of the probe frame hook (1) by the clamping arms (50111) and the clamping grooves (50112).

[0015] Preferably, the lower seat (5011) has a through hole (50113) through which the potentiometer knob (503) passes, one end of the potentiometer knob (503) is rotatably connected to the detection end of the potentiometer (502); the other end of the potentiometer knob (503) passes through the through hole (50113) and is connected to one end of the adjusting screw (2).

[0016] Preferably, the internal cavity of the lower seat (5011) is sealed with glue.

[0017] Preferably, the upper seat (5012) is fixedly installed at the rear of the lower seat (5011); the lower seat (5011) has a cable passage hole for the cable (504) to pass through.

[0018] Preferably, a guide shaft (6) is fixedly installed inside the probe holder hook (1), the guide shaft (6) is arranged parallel to the adjusting screw (2), and the lower part of the slider (3) is sleeved on the outside of the guide shaft (6) and can slide along the guide shaft (6).

[0019] Preferably, the probe holder (4) includes a support side plate (401), a probe ring (402), a rotating shaft (403), and a torsion spring (404);

[0020] One end of the support side plate (401) is rotatably connected to the bottom of the slider (3) via the rotating shaft (403); the torsion spring (404) is sleeved on the outside of the rotating shaft (403), and one end of the torsion spring (404) abuts against the bottom of the slider (3);

[0021] The probe ring (402) is installed at the other end of the support side plate (401), and the probe (7) is installed inside the probe ring (402).

[0022] Preferably, bolts (405) are installed at the other end of the support side plate (401) and at one end of the probe ring (402), and are fastened by nuts (406).

[0023] The rail flaw detector probe holder provided by this utility model, which can detect the lateral position of the probe, has the following advantages:

[0024] This utility model provides a rail flaw detector probe holder capable of detecting the lateral position of the probe. By configuring a probe lateral position measuring device, the lateral position of the probe can be detected in real time, thereby realizing real-time monitoring of the lateral position of the probe. On the one hand, it can ensure standardized operating procedures and improve the quality of flaw detection operations; on the other hand, it is beneficial to accurately analyze the detection results of track flaw detection operations. Attached Figure Description

[0025] Figure 1 This is a perspective view of the probe frame of the rail flaw detector that can detect the lateral position of the probe according to this utility model.

[0026] Figure 2 This is a front view of the probe frame of the rail flaw detector that can detect the lateral position of the probe according to this utility model.

[0027] Figure 3 This is a side view of the probe frame of the rail flaw detector of this utility model, which can detect the lateral position of the probe.

[0028] Figure 4 This is an exploded view of the probe frame of the rail flaw detector that can detect the lateral position of the probe according to this utility model.

[0029] Figure 5 This is a perspective view of the lower base, potentiometer, and potentiometer knob of this utility model after assembly at one angle.

[0030] Figure 6 This is a perspective view of the lower base, potentiometer, and potentiometer knob of this utility model after assembly from another angle.

[0031] Figure 7 This is an assembly diagram of the potentiometer and potentiometer knob of this utility model.

[0032] in:

[0033] 1-Probe holder hook; 2-Adjusting screw; 3-Slider; 4-Probe holder; 5-Probe lateral position measuring device; 6-Guide shaft; 7-Probe; 401-Support side plate; 402-Probe ring; 403-Rotating shaft; 404-Torsion spring; 405-Bolt; 406-Nut; 501-Outer shell; 502-Polypotentiometer; 503-Polypotentiometer knob; 504-Cable; 5011-Lower seat; 5012-Upper seat; 50111-Clamping arm; 50112-Clamping groove; 50113-Through hole. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely one embodiment of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model.

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 This utility model provides a rail flaw detector probe frame that can detect the lateral position of the probe, including a probe frame hook 1, an adjusting screw 2, a slider 3, a probe frame 4, and a probe lateral position measuring device 5;

[0038] The probe frame hook 1 is fixedly installed at the corresponding position of the rail flaw detector, for example, on the two side flaps and the bottom of the frame of the rail flaw detector; the adjusting screw 2 is rotatably installed inside the probe frame hook 1; the slider 3 is sleeved on the outside of the adjusting screw 2; the probe frame 4 is hinged to the lower part of the slider 3; when the adjusting screw 2 rotates, it drives the slider 3 to move laterally along the adjusting screw 2, thereby driving the probe frame 4 to move laterally.

[0039] To enhance the stability of the slider 3 moving along the adjusting screw 2, a guide shaft 6 is also provided. Specifically, the guide shaft 6 is fixedly installed inside the probe holder hook 1. The guide shaft 6 is a long optical axis. The guide shaft 6 is parallel to the adjusting screw 2. Furthermore, the lower part of the slider 3 is sleeved on the outside of the guide shaft 6 and can slide along the guide shaft 6.

[0040] The probe lateral position measuring device 5 is mounted on the outside of the probe holder hook 1; the detection end of the probe lateral position measuring device 5 is fixedly connected to one end of the adjusting screw 2.

[0041] Therefore, when the adjusting screw 2 rotates and drives the probe frame 4 to move laterally, the present invention provides a probe lateral position measuring device 5 connected to the adjusting screw 2. The probe lateral position measuring device 5 detects the lateral displacement of the probe frame 4 caused by the rotation of the adjusting screw 2, thereby realizing real-time monitoring of the lateral position of the probe frame 4.

[0042] This utility model does not limit the specific structure of the probe lateral position measuring device 5. As a specific implementation, the probe lateral position measuring device 5 includes a housing 501, a potentiometer 502, a potentiometer knob 503, and a cable 504. The housing 501 is fixed to the outside of the probe holder hook 1. The potentiometer 502 is fixedly installed inside the housing 501. The potentiometer knob 503 is rotatably installed on the detection end of the potentiometer 502. The other end of the potentiometer knob 503 is fastened to one end of the adjusting screw 2. Specifically, the opening of the other end of the potentiometer knob 503 and one end of the adjusting screw 2 can be interference-fitted for fixation. The output end of the potentiometer 502 is fixedly connected to one end of the cable 504. The other end of the cable 504 is connected to the main unit of the rail flaw detector.

[0043] Therefore, when the adjusting screw 2 rotates, it synchronously drives the potentiometer knob 503 to rotate. As the potentiometer knob 503 rotates, the brush inside the potentiometer 502 moves along the resistive element, thereby changing the resistance value. This yields a resistance value that is directly related to the displacement. The resistance value is then converted into a displacement value, thus enabling displacement detection. The displacement detected by the potentiometer 502 is then transmitted to the rail flaw detector host via cable 504, enabling real-time monitoring of the lateral position of the probe frame 4.

[0044] It should be emphasized that potentiometer 502 is a known device in the field, and its internal structure and displacement detection principle are common knowledge in the field. The main innovation of this application lies in connecting the potentiometer knob 503 and the adjusting screw 2, thereby realizing real-time monitoring of the lateral position of the probe holder 4.

[0045] For ease of assembly, the outer casing 501 includes a lower base 5011 and an upper base 5012. A potentiometer 502 is fixedly mounted inside the lower base 5011. Clamping arms 50111 are integrally formed on both sides of the lower base 5011, and each clamping arm 50111 has clamping grooves 50112 that match the side plates of the probe holder hook 1. The lower base 5011 is clamped and mounted to the outside of the side plates of the probe holder hook 1 using the clamping arms 50111 and the clamping grooves 50112. For example, the clamping grooves 50112 of the lower base 5011 can slide upwards from the bottom of the side plates of the probe holder hook 1. After sliding into position, the clamping effect is achieved through the elastic force of the clamping arms 50111. This design offers the advantage of convenient installation and disassembly.

[0046] The lower body 5011 has a through hole 50113 through which the potentiometer knob 503 passes. One end of the potentiometer knob 503 is rotatably connected to the detection end of the potentiometer 502. The other end of the potentiometer knob 503 passes through the through hole 50113 and is connected to one end of the adjusting screw 2. The specific connection method can be an interference fit connection.

[0047] To improve the reliability of the probe lateral position measuring device 5, the interior of the lower body 5011 is sealed with glue after reserving the rotation interval of the potentiometer knob 503.

[0048] The upper body 5012 is fixedly installed at the rear of the lower body 5011. For example, the upper body 5012 and the lower body 5011 are connected by sealant; the lower body 5011 has a cable hole for the cable 504 to pass through.

[0049] As a specific implementation structure, the probe holder 4 includes a support side plate 401, a probe ring 402, a rotating shaft 403, and a torsion spring 404; one end of the support side plate 401 is rotatably connected to the bottom of the slider 3 via the rotating shaft 403; the rotating shaft 403 adopts a short optical shaft; the torsion spring 404 is sleeved on the outside of the rotating shaft 403, and one end of the torsion spring 404 abuts against the bottom of the slider 3; by setting the rotating shaft 403, the angle between the probe holder 4 and the upper slider 3 and other related structures can be adjusted, and after adjustment, it is tightened by the action of the torsion spring 404.

[0050] A probe ring 402 is installed at the other end of the support side plate 401. One installation method is to install bolts 405 at the other end of the support side plate 401 and one end of the probe ring 402, and tighten them with nuts 406. A probe 7 is installed inside the probe ring 402.

[0051] Therefore, when a rail flaw detector performs flaw detection operations on a curved section of the track, the moving probe frame of the rail flaw detector drives the probe forward on the rail to perform ultrasonic non-destructive testing. Due to lateral bending or side wear of the rail, the probe of the rail flaw detector may shift laterally. At this time, the flaw detection operator needs to manually adjust the adjusting screw of the probe frame to adjust the lateral position of the probe so that it is at the target position on the track, such as the center of the track, so as to perform the flaw detection operation. The rail flaw detector probe frame provided by this utility model can detect the lateral position of the probe in real time by configuring a probe lateral position measuring device, thereby realizing real-time monitoring of the lateral position of the probe. On the one hand, it can ensure standardized operation procedures and improve the quality of flaw detection operations; on the other hand, it is beneficial to accurately analyze the detection results of track flaw detection operations.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rail flaw detector probe support capable of detecting the lateral position of the probe, characterized in that, The probe holder hook (1), the adjusting screw rod (2), the sliding block (3), the probe holder (4) and the probe transverse position measuring device (5) are included. The probe holder hook (1) is fixedly installed at the corresponding position of the rail flaw detector; the adjusting screw rod (2) is rotatably installed inside the probe holder hook (1); the sliding block (3) is installed outside the adjusting screw rod (2); the lower part of the sliding block (3) is hingedly installed with the probe holder (4); when the adjusting screw rod (2) rotates, the sliding block (3) is driven to move transversely along the adjusting screw rod (2), and in turn drives the probe holder (4) to move transversely. The probe transverse position measuring device (5) is installed outside the probe holder hook (1); the detection end of the probe transverse position measuring device (5) is fixedly connected with one end of the adjusting screw rod (2).

2. A rail flaw detector probe support capable of detecting the lateral position of the probe according to claim 1, characterized in that, The probe transverse position measuring device (5) includes a shell (501), a potentiometer (502), a potentiometer knob (503) and a cable (504). The shell (501) is clamped outside the probe holder hook (1); the potentiometer (502) is fixedly installed inside the shell (501); the detection end of the potentiometer (502) is rotatably installed with the potentiometer knob (503); the other end of the potentiometer knob (503) is fastened with one end of the adjusting screw rod (2); the output end of the potentiometer (502) is fixedly connected with one end of the cable (504); the other end of the cable (504) is connected to the rail flaw detector host.

3. A rail flaw detector probe support with detectable probe lateral position according to claim 2, characterized in that, The shell (501) includes a lower seat body (5011) and an upper seat body (5012). The potentiometer (502) is fixedly installed inside the lower seat body (5011); the clamping arms (50111) are integrally formed on both sides of the lower seat body (5011); the clamping grooves (50112) matching the side plates of the probe holder hook (1) are formed on both sides of the clamping arms (50111); the lower seat body (5011) is clamped and installed outside the side plates of the probe holder hook (1) through the clamping arms (50111) and the clamping grooves (50112).

4. A rail flaw detector probe support with detectable probe lateral position according to claim 3, characterized in that, The lower seat body (5011) has a through hole (50113) through which the potentiometer knob (503) passes; one end of the potentiometer knob (503) is rotatably connected with the detection end of the potentiometer (502); the other end of the potentiometer knob (503) is connected to one end of the adjusting screw rod (2) after passing through the through hole (50113).

5. A rail flaw detector probe support with detectable probe lateral position according to claim 3, characterized in that, The internal cavity of the lower seat body (5011) is filled with glue for sealing.

6. A rail flaw detector probe support with detectable probe lateral position according to claim 3, characterized in that, The upper seat body (5012) is fixedly installed at the rear of the lower seat body (5011); the wire passing hole is formed in the lower seat body (5011) for the cable (504) to pass through.

7. A rail flaw detector probe support with detectable probe lateral position according to claim 1, characterized in that, The guide shaft (6) is fixedly arranged inside the probe holder hook (1); the guide shaft (6) is arranged in parallel with the adjusting screw rod (2); the lower part of the sliding block (3) is sleeved outside the guide shaft (6) and can slide along the guide shaft (6).

8. A rail flaw detector probe support with detectable probe lateral position according to claim 1, characterized in that, The probe holder (4) comprises a support side plate (401), a probe ring (402), a rotating shaft (403) and a torsion spring (404); One end of the support side plate (401) is rotatably connected to the bottom of the sliding block (3) through the rotating shaft (403); the outside of the rotating shaft (403) is sleeved with the torsion spring (404), and one end of the torsion spring (404) abuts against the bottom of the sliding block (3); The other end of the support side plate (401) is provided with the probe ring (402), and the inside of the probe ring (402) is provided with a probe (7).

9. A rail flaw detector probe carriage capable of detecting the lateral position of the probe according to claim 8, characterized in that, The other end of the support side plate (401) and one end of the probe ring (402) are provided with a bolt (405), and are fastened by a nut (406).

Images