A rail flaw detector probe frame capable of automatically adjusting the lateral position of the probe

Abstract

The utility model provides a kind of rail flaw detector probe frame of automatic adjustment probe transverse position, including probe frame hook, sliding block, guide shaft, probe frame, probe, speed reducer, motor and worm adjusting screw rod;The outside of the probe frame hook is equipped with the speed reducer and the motor;The output end of the speed reducer is meshed connection with the gear of one end of the worm adjusting screw rod, and the input end of the speed reducer is connected with the output end of the motor.The utility model provides a kind of rail flaw detector probe frame of automatic adjustment probe transverse position, and probe transverse position can be automatically adjusted by motor drive, improves the working efficiency of probe transverse position adjustment.

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 automatically adjust 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 rails in curved sections to promptly detect internal and surface defects, thereby ensuring the safety of train transportation.

[0004] In the existing technology, when performing flaw detection on curved rails, 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 of ​​the rail tread and the rail flaw detection operation in the corresponding scanning area is completed.

[0005] The above-mentioned method for flaw detection of curved rails has the following problems: manually adjusting the probe position not only increases the burden on workers, but also seriously affects work efficiency. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a rail flaw detector probe holder that can automatically adjust the lateral position of the probe, effectively solving the aforementioned 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 automatically adjust the lateral position of the probe, including a probe frame hook (1), a slider (2), a guide shaft (3), a probe frame (4), a probe (5), a reduction mechanism (6), a motor (7), and a worm gear adjusting screw (8);

[0009] The probe frame hook (1) is fixedly installed at the corresponding position of the rail flaw detector; the worm gear adjusting screw (8) is rotatably installed inside the probe frame hook (1); the slider (2) is sleeved on the outside of the worm gear adjusting screw (8); the guide shaft (3) parallel to the worm gear adjusting screw (8) is fixedly installed inside the probe frame hook (1), and the guide shaft (3) passes through the slider (2), so that the slider (2) moves laterally along the guide shaft (3);

[0010] The probe frame (4) is hinged to the lower part of the slider (2); the probe (5) is installed at the bottom of the probe frame (4); when the worm gear adjusting screw (8) rotates, it drives the slider (2) to move laterally along the worm gear adjusting screw (8), thereby driving the probe frame (4) to move laterally.

[0011] The deceleration mechanism (6) and the motor (7) are mounted on the outside of the probe holder hook (1); the output end of the deceleration mechanism (6) is geared and connected to one end of the worm gear adjusting screw (8), and the input end of the deceleration mechanism (6) is connected to the output end of the motor (7).

[0012] Preferably, the output end of the motor (7) is an output worm gear (701); the reduction mechanism (6) includes a first gear (601) and a second gear (602);

[0013] The output worm (701) meshes with the second gear (602); the second gear (602) meshes with the first gear (601); and the first gear (601) meshes with one end of the worm adjusting screw (8).

[0014] Preferably, when the worm gear adjusting screw (8) rotates one revolution, it causes the slider (2) to move 1 mm horizontally.

[0015] Preferably, the worm gear adjusting screw (8) is threadedly connected to the probe holder hook (1).

[0016] Preferably, a lead screw nut (201) is welded to the outside of the slider (2); the lead screw nut (201) is threadedly connected to the worm gear adjusting lead screw (8).

[0017] Preferably, the probe holder (4) includes a support side plate (401), a probe ring (402), a rotating shaft (403), and a torsion spring (404);

[0018] One end of the support side plate (401) is rotatably connected to the bottom of the slider (2) 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) is located at the bottom of the slider (2);

[0019] The probe ring (402) is installed at the other end of the support side plate (401), and the probe (5) is installed inside the probe ring (402).

[0020] 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).

[0021] Preferably, the probe holder (4) further includes a probe set screw (407); the probe (5) and the probe ring (402) are fastened together by the probe set screw (407).

[0022] The rail flaw detector probe holder with automatically adjustable lateral position provided by this utility model has the following advantages:

[0023] This utility model provides a rail flaw detector probe holder that can automatically adjust the lateral position of the probe. Driven by a motor, it can automatically adjust the lateral position of the probe, thereby improving the working efficiency of the lateral position adjustment. Attached Figure Description

[0024] Figure 1 This is a perspective view of the probe frame of the rail flaw detector with automatically adjustable lateral probe position according to this utility model.

[0025] Figure 2 This is a front view of the probe frame of the rail flaw detector with automatically adjustable lateral position of the probe according to this utility model.

[0026] Figure 3 This is a side view of the probe frame of the rail flaw detector with automatically adjustable lateral probe position according to the present invention.

[0027] Figure 4 This is an exploded view of the probe frame of the rail flaw detector with automatically adjustable lateral probe position according to this utility model.

[0028] Wherein: 1-Probe holder hook; 2-Slider; 3-Guide shaft; 4-Probe holder; 5-Probe; 6-Reduction mechanism; 7-Motor; 8-Worm gear adjusting screw; 201-Screw nut; 401-Support side plate; 402-Probe ring; 403-Rotating shaft; 404-Torsion spring; 405-Bolt; 406-Nut; 407-Probe set screw; 601-First gear; 602-Second gear; 603-Reduction mechanism housing; 701-Output worm gear. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a rail flaw detector probe frame that can automatically adjust the lateral position of the probe, including a probe frame hook 1, a slider 2, a guide shaft 3, a probe frame 4, a probe 5, a reduction mechanism 6, a motor 7, and a worm gear adjusting screw 8;

[0033] The probe holder hook 1 is fixedly installed at the corresponding position of the rail flaw detector; for example, it is installed on the two side flaps and the bottom of the frame of the rail flaw detector; the worm gear adjusting screw 8 is rotatably installed inside the probe holder hook 1; for example, the worm gear adjusting screw 8 is threadedly connected to the probe holder hook 1.

[0034] A slider 2 is mounted on the outside of the worm gear adjusting screw 8; a guide shaft 3 parallel to the worm gear adjusting screw 8 is fixedly installed inside the probe holder hook 1. The guide shaft 3 is a long optical axis and passes through the slider 2, allowing the slider 2 to move laterally along the guide shaft 3; furthermore, a screw nut 201 is welded to the outside of the slider 2; the screw nut 201 is threadedly connected to the worm gear adjusting screw 8. By setting the guide shaft 3, the stability of the slider 2 moving along the worm gear adjusting screw 8 can be enhanced.

[0035] The lower part of the slider 2 is hinged to the probe frame 4; the probe 5 is installed at the bottom of the probe frame 4; when the worm gear adjusting screw 8 rotates, it drives the slider 2 to move laterally along the worm gear adjusting screw 8, thereby driving the probe frame 4 to move laterally.

[0036] The external mounting of the probe holder hook 1 is a reduction mechanism 6 and a motor 7; the output end of the reduction mechanism 6 is geared and connected to one end of the worm gear adjusting screw 8, and the input end of the reduction mechanism 6 is connected to the output end of the motor 7.

[0037] Therefore, when the rail flaw detector reaches the curved section, the flaw detector operator controls the forward and reverse rotation of the motor 7. The motor power is transmitted to the worm gear adjusting screw 8 after being changed through the reduction mechanism 6. The worm gear adjusting screw 8 rotates and drives the probe frame 4 to move laterally, so that the probe can be centered on the rail tread.

[0038] This utility model does not limit the specific structure of the motor 7 and the reduction mechanism 6. As one specific embodiment, the output end of the motor 7 is an output worm gear 701; the reduction mechanism 6 includes a first gear 601, a second gear 602, and a reduction mechanism housing 603. The reduction mechanism housing 603 is fixed to the outside of the probe frame hook 1; the first gear 601 and the second gear 602 are fixedly installed inside the reduction mechanism housing 603.

[0039] The output worm 701 meshes with the second gear 602; the second gear 602 meshes with the first gear 601; and the first gear 601 meshes with one end of the worm adjusting screw 8. In a specific implementation, one rotation of the worm adjusting screw 8 causes the slider 2 to move horizontally by 1 mm. The slider 2 is mounted on the outside of the worm adjusting screw 8.

[0040] Therefore, when the motor 7 starts working, the power is transmitted to the second gear 602 of the reduction mechanism 6 through the output worm 701. The second gear 602 meshes with the first gear 601, and the power is transmitted again and reduced to the worm adjusting screw 8. The worm adjusting screw 8 rotates one revolution. At this time, the slider 2 moves horizontally by 1 mm along the guide shaft 3, and at the same time, the probe frame 4 moves horizontally by 1 mm along with the probe 5.

[0041] It should be emphasized that the motor 7 is a known device in the field, and its internal structure and working principle for forward and reverse rotation are common knowledge in the field. Therefore, this application will not elaborate on them.

[0042] 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;

[0043] One end of the supporting side plate 401 is rotatably connected to the bottom of the slider 2 via a rotating shaft 403; the rotating shaft 403 is a short optical shaft; a torsion spring 404 is sleeved on the outside of the rotating shaft 403, and one end of the torsion spring 404 is located at the bottom of the slider 2; by setting the rotating shaft 403, the angle between the probe frame 4 and the upper slider 2 and other related structures can be adjusted, and after adjustment, it is tightened by the action of the torsion spring 404.

[0044] A probe ring 402 is mounted on the other end of the support side plate 401. One mounting method is that the probe 5 is mounted inside the probe ring 402. Bolts 405 are mounted on the other end of the support side plate 401 and one end of the probe ring 402, and are tightened by nuts 406. The probe holder 4 also includes a probe set screw 407; the probe 5 and the probe ring 402 are fastened together by the probe set screw 407.

[0045] Therefore, when a rail flaw detector performs flaw detection operations on a curved section of the track, the probe holder moves the probe forward on the rail as the rail flaw detector moves 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. In existing technology, the flaw detection operator needs to manually adjust the lateral position of the probe to the target position on the rail tread, such as the center of the rail tread, in order to perform the flaw detection operation. This utility model provides a rail flaw detector probe holder that can automatically adjust the lateral position of the probe. Driven by a motor, it can automatically adjust the lateral position of the probe, improving the efficiency of the lateral position adjustment.

[0046] 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 probe holder for a rail flaw detector with automatically adjustable lateral position, characterized in that, It includes a probe holder hook (1), a slider (2), a guide shaft (3), a probe holder (4), a probe (5), a reduction mechanism (6), a motor (7), and a worm gear adjusting screw (8); The probe frame hook (1) is fixedly installed at the corresponding position of the rail flaw detector; the worm gear adjusting screw (8) is rotatably installed inside the probe frame hook (1); the slider (2) is sleeved on the outside of the worm gear adjusting screw (8); the guide shaft (3) parallel to the worm gear adjusting screw (8) is fixedly installed inside the probe frame hook (1), and the guide shaft (3) passes through the slider (2), so that the slider (2) moves laterally along the guide shaft (3); The probe frame (4) is hinged to the lower part of the slider (2); the probe (5) is installed at the bottom of the probe frame (4); when the worm gear adjusting screw (8) rotates, it drives the slider (2) to move laterally along the worm gear adjusting screw (8), thereby driving the probe frame (4) to move laterally. The deceleration mechanism (6) and the motor (7) are mounted on the outside of the probe holder hook (1); the output end of the deceleration mechanism (6) is geared and connected to one end of the worm gear adjusting screw (8), and the input end of the deceleration mechanism (6) is connected to the output end of the motor (7).

2. The rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 1, characterized in that, The output end of the motor (7) is an output worm gear (701); the reduction mechanism (6) includes a first gear (601) and a second gear (602); The output worm (701) meshes with the second gear (602); the second gear (602) meshes with the first gear (601); and the first gear (601) meshes with one end of the worm adjusting screw (8).

3. The rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 1, characterized in that, The worm gear adjusting screw (8) rotates one revolution, causing the slider (2) to move 1 mm horizontally.

4. The rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 1, characterized in that, The worm gear adjusting screw (8) is threadedly connected to the probe holder hook (1).

5. A rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 1, characterized in that, The slider (2) is welded with a lead screw nut (201); the lead screw nut (201) is threadedly connected to the worm gear adjusting lead screw (8).

6. A rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 1, characterized in that, 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 (2) 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) is located at the bottom of the slider (2); The probe ring (402) is installed at the other end of the support side plate (401), and the probe (5) is installed inside the probe ring (402).

7. A rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 6, characterized in that, Bolts (405) are installed on the other end of the support side plate (401) and one end of the probe ring (402), and are fastened by nuts (406).

8. A rail flaw detector probe holder with automatically adjustable lateral probe position according to claim 6, characterized in that, The probe holder (4) also includes a probe set screw (407); the probe (5) and the probe ring (402) are fastened together by the probe set screw (407).

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