Rail flaw detection apparatus with adjustable structure

Abstract

The utility model discloses rail flaw detection equipment with adjustable structure relates to rail flaw detection equipment technical field, including adjusting box and ultrasonic detector, the middle part inner chamber bottom wall of adjusting box is fixed with the receiving cylinder, the sliding joint of receiving cylinder's cylinder body has the adjusting lever, and the ultrasonic detector is fixed in the bottom end part of adjusting lever, and the rod body surface of adjusting lever is evenly provided with a plurality of positioning holes along the vertical direction, and the bottom end cylinder body of receiving cylinder is provided with positioning mechanism, and the clamping mechanism is set up in the box body of adjusting box. The utility model discloses through positioning mechanism, when needing to adjust the height of ultrasonic detector, according to the height of the rail that needs to detect after adjusting, loosens the prong, and under the action of spring and reset board makes the positioning rod automatic reset, makes it insert to the flush positioning hole, and the position of ultrasonic detector is limited fixed. Under the action of clamping mechanism, ultrasonic detector can conveniently detect the rail.

Description

Technical Field

[0001] This utility model relates to the technical field of rail flaw detection equipment, specifically a rail flaw detection equipment with an adjustable structure. Background Technology

[0002] To ensure the normal operation of the railway system, rails need to be inspected by lifting them to ensure they are in good working order. Currently, in China, periodic inspections are mostly conducted using rail flaw detection vehicles to replace or repair substandard rails.

[0003] Chinese Patent Publication No. CN215727919U discloses a portable rail flaw detection device with automatic centering capability. It includes a housing with a handle integrally mounted on the upper part, an ultrasonic detector fixed at the bottom facing downwards, and a centering mechanism fixed inside the housing to align the ultrasonic detector with the center of the rail. This portable rail flaw detection device automatically determines the geometric center of the rail through the centering mechanism, ensuring accurate measurement of the rail section by the ultrasonic detector. It is convenient to carry, flexible in use, and can perform real-time rail inspection. It allows workers to easily determine which rails need repair or replacement based on information provided by a rail flaw detection vehicle, offering high practicality and flexibility.

[0004] However, the rail flaw detection equipment disclosed in the above patent still has certain shortcomings in practical applications. Although it can automatically determine the geometric center of the rail through the centering mechanism, thereby ensuring that the ultrasonic detector can accurately measure the section of rail, when detecting rails of different specifications, the height of the rails is different, but the height of the ultrasonic detector cannot be adjusted according to the different heights of the rails, which is inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a rail flaw detection device with an adjustable structure, so as to solve the problem mentioned in the background art that the height of the ultrasonic detector of the existing rail flaw detection device cannot be adjusted according to the rails of different heights.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rail flaw detection device with an adjustable structure, including an adjustment box and an ultrasonic detector. A storage cylinder is fixed to the bottom wall of the inner cavity of the adjustment box. An adjustment rod is slidably connected in the cylinder of the storage cylinder. The ultrasonic detector is fixed to the bottom end of the adjustment rod. Multiple positioning holes are evenly opened on the surface of the adjustment rod in the vertical direction. A positioning mechanism is provided at the bottom end of the storage cylinder to realize the height adjustment of the ultrasonic detector. A clamping mechanism is provided in the box of the adjustment box to clamp the rail to be inspected.

[0007] Preferably, the positioning mechanism includes a positioning frame, a positioning rod, and a dial. The positioning frame is fixedly installed on the circumferential side wall of the bottom end of the storage tube. One end of the positioning rod movably penetrates the front wall of the inner cavity of the positioning frame, and the other end of the positioning rod movably penetrates the wall of the storage tube and is movably inserted into the cavity of the positioning hole. The dial is fixedly installed on the front end of the positioning rod.

[0008] Preferably, the positioning mechanism further includes a spring and a reset plate disposed within the positioning frame. The reset plate is fixedly sleeved on the surface of the positioning rod, and the spring is sleeved on the surface of the positioning rod, with the spring located on the side of the reset plate away from the storage cylinder.

[0009] Preferably, the clamping mechanism includes a guide groove, a bidirectional lead screw, and a moving block. The two ends of the bidirectional lead screw are rotatably mounted on the two side walls of the inner cavity of the regulating box, and the moving block is screwed onto the surfaces of the two ends of the bidirectional lead screw. The guide groove is respectively opened on the bottom walls of the two sides of the regulating box.

[0010] Preferably, the clamping mechanism further includes a horizontal plate, a motor, a clamping rod, a positioning roller, and a connecting column. The horizontal plate is fixedly installed on one side wall of the adjusting box. The motor is installed on the top wall of the horizontal plate. The output end of the motor is connected to one end of the bidirectional lead screw via a coupling. The top wall of the connecting column is fixedly connected to the bottom wall of the moving block. The column body of the connecting column is adapted to the cavity of the guide groove. The bottom end of the connecting column movably passes through the cavity of the guide groove. The top end of the clamping rod is fixedly connected to the bottom wall of the connecting column. The positioning roller is rotatably connected to the bottom end of the clamping rod.

[0011] Preferably, a handle is fixedly installed on the top wall of the regulating box.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a positioning mechanism. When the height of the ultrasonic detector needs adjustment, the positioning rod can be moved by pulling a lever, causing it to be pulled out of the positioning hole on the surface of the adjusting rod. During this process, the reset plate compresses the spring. After the positioning rod is pulled out, the adjusting rod can be grasped and moved up and down along the inside of the receiving cylinder. Once the height of the rail to be inspected is adjusted, the lever can be released, and the positioning rod automatically resets under the action of the spring and the reset plate, allowing it to insert into the flush positioning hole and limit and fix the position of the ultrasonic detector. The clamping mechanism allows the rail to be clamped. When the rail needs to be clamped, the motor drives the bidirectional lead screw to rotate. Under the limiting and guiding action of the guide groove, the moving block, via the connecting column, moves the clamping rods on both sides closer or further apart, causing the two positioning rollers to abut against the two side walls of the rail, thus facilitating the ultrasonic detector's inspection of the rail. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of the rail flaw detection equipment with an adjustable structure according to this utility model.

[0015] Figure 2 This is a second-view structural schematic diagram of the rail flaw detection equipment with an adjustable structure according to this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a third-view cross-sectional structural diagram of the rail flaw detection equipment with an adjustable structure according to this utility model.

[0018] In the diagram: 1. Adjustment box; 2. Handle; 3. Horizontal plate; 4. Motor; 5. Clamping rod; 6. Positioning roller; 7. Ultrasonic detector; 8. Storage tube; 9. Adjustment rod; 10. Positioning hole; 11. Positioning frame; 12. Positioning rod; 13. Spring; 14. Reset plate; 15. Dial head; 16. Guide groove; 17. Two-way lead screw; 18. Moving block; 19. Connecting column. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a rail flaw detection device with an adjustable structure, including an adjustment box 1 and an ultrasonic detector 7. A storage cylinder 8 is welded to the bottom wall of the inner cavity in the middle of the adjustment box 1. An adjustment rod 9 is slidably connected in the cylinder of the storage cylinder 8. The ultrasonic detector 7 is fixed to the bottom end of the adjustment rod 9 by screws. Multiple positioning holes 10 are evenly opened on the surface of the rod of the adjustment rod 9 in a vertical direction. A positioning mechanism is provided at the bottom end of the cylinder of the storage cylinder 8 to realize the height adjustment of the ultrasonic detector 7. A clamping mechanism is provided in the box of the adjustment box 1 to clamp the rail to be inspected.

[0021] The positioning mechanism includes a positioning frame 11, a positioning rod 12, and a dial 15. The positioning frame 11 is welded to the circumferential side wall of the bottom end of the storage cylinder 8. The front end of the positioning rod 12 movably passes through the front wall of the inner cavity of the positioning frame 11, and the other end of the positioning rod 12 movably passes through the wall of the storage cylinder 8 and is movably inserted into the cavity of the positioning hole 10. The dial 15 is welded to the front end of the positioning rod 12, and its purpose is to facilitate the movement of the positioning rod 12 by the dial 15. The positioning mechanism also includes a spring 13 and a reset plate 14 disposed within the frame of the positioning frame 11. The reset plate 14 is welded and sleeved on the surface of the positioning rod 12, and the spring 13 is sleeved on the surface of the positioning rod 12, with the spring 13 located on the side of the reset plate 14 away from the storage cylinder 8, so that the positioning rod 12 can automatically reset. The clamping mechanism includes a guide groove 16, a bidirectional lead screw 17, and a moving block 18. The left and right ends of the bidirectional lead screw 17 pass through... Bearings are rotatably mounted on the left and right side walls of the inner cavity of the regulating box 1. Moving blocks 18 are screwed onto the surfaces of the two ends of the double-acting screw 17. Guide grooves 16 are respectively opened on the bottom walls of the left and right sides of the regulating box 1. The clamping mechanism also includes a horizontal plate 3, a motor 4, a clamping rod 5, a positioning roller 6, and a connecting column 19. The horizontal plate 3 is welded to the right side wall of the regulating box 1. The motor 4 is bolted to the top wall of the horizontal plate 3. The output end of the motor 4 is connected to the right end of the double-acting screw 17 via a coupling. The top wall of the connecting column 19 is welded to the bottom wall of the moving block 18. The column of the connecting column 19 is adapted to the cavity of the guide groove 16. The bottom end of the connecting column 19 moves through the cavity of the guide groove 16. The top end of the clamping rod 5 is welded to the bottom wall of the connecting column 19. The positioning roller 6 is rotatably connected to the bottom end of the clamping rod 5 via a bearing. The handle 2 is bolted to the top wall of the regulating box 1 for the purpose of facilitating the movement of the equipment.

[0022] Working Principle: The positioning mechanism allows the positioning rod 12 to be moved by the dial 15 when the height of the ultrasonic detector 7 needs adjustment. This causes the positioning rod 12 to be pulled out of the positioning hole 10 on the surface of the adjusting rod 9. During this process, the reset plate 14 compresses the spring 13. After the positioning rod 12 is pulled out, the adjusting rod 9 can be grasped and moved up and down along the inside of the storage cylinder 8. After the height of the rail to be inspected is adjusted, the dial 15 can be released. Under the action of the spring 13 and the reset plate 14, the positioning rod 12 automatically resets and inserts into the flush positioning hole 10, thus limiting and fixing the position of the ultrasonic detector 7. The clamping mechanism allows the bidirectional lead screw 17 to rotate by the starter motor 4 when the rail needs to be clamped. Under the limiting and guiding action of the guide groove 16, the moving block 18 moves the clamping rods 5 on both sides closer or further apart via the connecting column 19. This causes the two positioning rollers 6 to abut against the two side walls of the rail, facilitating the ultrasonic detector 7 to inspect the rail.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rail flaw detection device with an adjustable structure, comprising an adjustment box (1) and an ultrasonic detector (7), characterized in that: A storage cylinder (8) is fixed to the bottom wall of the inner cavity of the regulating box (1). An adjusting rod (9) is slidably connected in the cylinder of the storage cylinder (8). The ultrasonic detector (7) is fixed to the bottom end of the adjusting rod (9). Multiple positioning holes (10) are evenly opened on the surface of the adjusting rod (9) in the vertical direction. A positioning mechanism is provided at the bottom end of the storage cylinder (8) to realize the height adjustment of the ultrasonic detector (7). A clamping mechanism is provided in the box of the regulating box (1) to clamp the rail to be inspected.

2. The rail flaw detection equipment with an adjustable structure according to claim 1, characterized in that: The positioning mechanism includes a positioning frame (11), a positioning rod (12), and a dial (15). The positioning frame (11) is fixedly installed on the circumferential side wall of the bottom cylinder of the storage cylinder (8). One end of the positioning rod (12) movably penetrates the front wall of the inner cavity of the positioning frame (11), and the other end of the positioning rod (12) movably penetrates the wall of the storage cylinder (8) and is movably inserted into the cavity of the positioning hole (10). The dial (15) is fixedly installed on the front end of the rod of the positioning rod (12).

3. The rail flaw detection equipment with an adjustable structure according to claim 2, characterized in that: The positioning mechanism also includes a spring (13) and a reset plate (14) disposed within the frame of the positioning frame (11). The reset plate (14) is fixedly sleeved on the surface of the positioning rod (12), and the spring (13) is sleeved on the surface of the positioning rod (12). The spring (13) is located on the side of the reset plate (14) away from the storage tube (8).

4. The rail flaw detection equipment with an adjustable structure according to claim 3, characterized in that: The clamping mechanism includes a guide groove (16), a bidirectional lead screw (17), and a moving block (18). The two ends of the bidirectional lead screw (17) are rotatably mounted on the two side walls of the inner cavity of the regulating box (1). The moving block (18) is screwed onto the surfaces of the two ends of the bidirectional lead screw (17). The guide groove (16) is opened on the bottom walls of the two sides of the regulating box (1).

5. The rail flaw detection equipment with an adjustable structure according to claim 4, characterized in that: The clamping mechanism also includes a horizontal plate (3), a motor (4), a clamping rod (5), a positioning roller (6), and a connecting column (19). The horizontal plate (3) is fixedly installed on one side wall of the adjusting box (1). The motor (4) is installed on the top wall of the horizontal plate (3). The output end of the motor (4) is connected to one end of the bidirectional lead screw (17) via a coupling. The top wall of the connecting column (19) is fixedly connected to the bottom wall of the moving block (18). The column of the connecting column (19) is adapted to the cavity of the guide groove (16). The bottom end of the connecting column (19) moves through the cavity of the guide groove (16). The top end of the clamping rod (5) is fixedly connected to the bottom wall of the connecting column (19). The positioning roller (6) is rotatably connected to the bottom end of the clamping rod (5).

6. The rail flaw detection equipment with an adjustable structure according to claim 1, characterized in that: A handle (2) is fixedly installed on the top wall of the regulating box (1).

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