Motor train unit hollow axle flaw detector with displacement scanning structure

Abstract

The utility model discloses a motor train unit hollow axle flaw detector with a displacement scanning structure, which comprises a base with a square structure, and support plates are symmetrically arranged on the surface of the base; a rotating mechanism is arranged on the surface of the base, and the rotating mechanism is characterized in that side plates are symmetrically and fixedly connected to the surface of the base, a motor is installed on the surface of the side plate on one side, a connecting rod is fixedly connected to the tail end of an output shaft of the motor, sliding blocks are slidably installed on the surfaces of the two side plates in an embedded mode, and a transverse plate is fixedly connected between the two sliding blocks. According to the motor train unit hollow axle flaw detection machine with the displacement scanning structure, the rotating mechanism is arranged, the position of the detector can be conveniently rotated, multi-directional detection on the device is facilitated, a motor drives a transverse plate to rotate through a connecting rod, at the moment, the transverse plate drives the detector on the surface to rotate, and the detector rotates on the surface of an axle; the surface of the axle can be conveniently detected in multiple directions, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flaw detectors, in particular to a hollow axle flaw detector for a motor vehicle unit provided with a displacement scanning structure. Background Art

[0002] It is necessary to overhaul the high-speed railway EMUs that have reached the maintenance mileage. The axles used in high-speed railway EMUs are basic hollow axles to ensure operational safety. Therefore, during the overhaul, it is necessary to use a flaw detector to perform ultrasonic flaw detection on the axles to detect whether there are crack damage on the axles to ensure the operational safety of the EMUs. The existing axle flaw detector flaw detection process mainly includes spraying, charging, magnetization, magnetic trace observation, demagnetization, removal and other processes. The EMUs are parked in the EMU operation station. The flaw detectors operate the mobile hollow axle ultrasonic flaw detector on site, connect the equipment to the hollow axle of the EMU, perform flaw detection operations, check and analyze the ultrasonic images displayed by the flaw detector on site, and determine whether the hollow axle is qualified. However, when using the existing flaw detector, it is inconvenient to change the detection angle of the flaw detector, support the flaw detector, and move the flaw detector, which is inconvenient to use. Utility Model Content

[0003] The purpose of the utility model is to provide a hollow axle flaw detector for EMUs with a displacement scanning structure to solve the problems in the above-mentioned background technology that it is inconvenient to change the detection angle of the flaw detector, it is inconvenient to support the flaw detector, and it is impossible to move the flaw detector.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hollow axle flaw detector for EMUs with a displacement scanning structure, comprising a base with a square structure, and support plates symmetrically arranged on the surface of the base;

[0005] A rotating mechanism is provided on the surface of the base, and the rotating mechanism includes: side panels are symmetrically fixedly connected to the surface of the base, a motor is installed on the surface of one side panel, and a connecting rod is fixedly connected to the end of the motor output shaft, sliders are embedded and slidably installed on the surfaces of the two side panels, and a cross plate is fixedly connected between the two sliders, a detector is installed on the surface of the cross plate, and one side of the connecting rod is connected to the opposite surface of the cross plate.

[0006] Preferably, a limiting mechanism is provided on the surface of the base, and the limiting mechanism includes: a connecting frame is connected to the base, and a receiving plate is provided on the surface of the connecting frame, a sliding rod is symmetrically embedded in the surface of the receiving plate, and the bottom of the sliding rod passes through the bottom of the base and is connected to a spring, the surface of the connecting frame is connected to a vertical plate, and the end of the spring is connected to the surface of the vertical plate, the surface of the sliding rod is fixedly connected to a rack, the surface of the connecting frame is connected to a rotating rod, and gears are symmetrically provided on the surface of the rotating rod, and the surface of the gear is fixedly connected to a limiting block.

[0007] By adopting the above technical solution, the limiting mechanism can fix the position of the axle to prevent the axle from moving.

[0008] Preferably, the receiving plate is arranged as an inclined plane, and the connecting frame and the sliding rod are slidably connected.

[0009] By adopting the above technical solution, the axle moves on the surface of the receiving plate, and the axle presses the receiving plate downward, thereby squeezing the receiving plate.

[0010] Preferably, the positions of the rack and the gear are arranged correspondingly, and the rack and the gear are meshingly connected.

[0011] By adopting the above technical solution, the rack drives the gear to rotate when moving, so that the gear drives the rotating rod to rotate.

[0012] Preferably, the rotating rod is rotationally connected to the connecting frame, and the support plates are symmetrically arranged on both sides of the connecting frame.

[0013] With the above technical solution, when the gear rotates, the gear drives the rotating rod to rotate on the surface of the connecting frame, and at this time, the gear drives the limit block on the surface to rotate.

[0014] Preferably, the side panels are symmetrically arranged on both sides of the connecting frame, and the side panels are arranged in an arc-shaped structure.

[0015] By adopting the above technical solution, the detector is rotated on the surface of the side plate, and the detector can detect the axle at multiple angles.

[0016] Preferably, a sliding groove is provided on the surface of the side plate, and a sliding block is provided inside the sliding groove of the side plate, and the side plate and the sliding block are slidably connected.

[0017] By adopting the above technical solution, the slider is rotated inside the side plate, at which time the slider drives the cross plate to rotate, and the cross plate drives the detector to rotate.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the EMU hollow axle flaw detector with a displacement scanning structure:

[0019] 1. A rotating mechanism is provided to facilitate the rotation of the position of the detector and the multi-directional detection of the device. The motor drives the horizontal plate to rotate through the connecting rod. At this time, the horizontal plate drives the detector on the surface to rotate, so that the detector rotates on the surface of the axle, which is convenient for multi-directional detection of the surface of the axle and improves the practicality of the device;

[0020] 2. A limit mechanism is provided to fix the position of the axle to prevent the axle from rotating. When the bottom of the axle presses the receiving plate downward, the receiving plate drives the gear to rotate through the rack. At this time, the gear drives the rotating rod to rotate, and the rotating rod drives the limit block to rotate. At this time, the end of the limit block contacts the surface of the axle to fix the position of the axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the receiving plate of the utility model;

[0024] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 5 This is a side view of the structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the gear installation of the utility model.

[0027] In the figure: 10, base; 20, support plate;

[0028] 30, connecting frame; 301, receiving plate; 302, sliding rod; 303, spring; 304, vertical plate; 305, rack; 306, rotating rod; 307, gear; 308, limit block;

[0029] 40. Side plate; 401. Motor; 402. Connecting rod; 403. Cross plate; 404. Slider; 405. Detector. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-6 The utility model provides a technical solution: a hollow axle flaw detector for EMU with a displacement scanning structure, comprising a base 10, a support plate 20, a connecting frame 30, a receiving plate 301, a slide bar 302, a spring 303, a vertical plate 304, a rack 305, a rotating rod 306, a gear 307, a limit block 308, a side plate 40, a motor 401, a connecting rod 402, a horizontal plate 403, a slide block 404 and a detector 405;

[0032] The hollow axle flaw detector of the EMU is convenient for fixing the position of the axle. The specific implementation method is as follows:

[0033] The base 10 is provided with a square structure, and the surface of the base 10 is symmetrically provided with a support plate 20; the surface of the base 10 is provided with a limiting mechanism, and the limiting mechanism includes: the base 10 is connected with a connecting frame 30, and the surface of the connecting frame 30 is provided with a receiving plate 301, the surface of the receiving plate 301 is symmetrically embedded with a sliding rod 302, and the bottom of the sliding rod 302 passes through the bottom of the base 10 and is connected to a spring 303, the surface of the connecting frame 30 is connected with a vertical plate 304, and the end of the spring 303 is connected to the surface of the vertical plate 304, and the surface of the sliding rod 302 A rack 305 is fixedly connected, a rotating rod 306 is connected to the surface of the connecting frame 30, and a gear 307 is symmetrically arranged on the surface of the rotating rod 306, and a limiting block 308 is fixedly connected to the surface of the gear 307, the receiving plate 301 is arranged as an inclined plane, and the connecting frame 30 and the sliding rod 302 are slidingly connected, the positions of the rack 305 and the gear 307 are arranged correspondingly, and the rack 305 and the gear 307 are meshingly connected, the rotating rod 306 and the connecting frame 30 are rotationally connected, and the support plates 20 are symmetrically arranged on both sides of the connecting frame 30.

[0034] The wheel of the axle moves on the surface of the supporting plate 20, and at this time the wheel drives the axle to move to the surface of the receiving plate 301 and moves along the surface of the receiving plate 301. At this time, the axle squeezes the receiving plate 301, and the receiving plate 301 pushes the sliding bar 302 to move downward. At this time, the sliding bar 302 moves downward inside the connecting frame 30, and the sliding bar 302 squeezes the spring 303 downward to shrink the spring 303. At the same time, the sliding bar 302 drives the rack 305 to move downward, and the rack 305 drives the rotating rod 306 to rotate, so that the rotating rod 306 rotates on the surface of the connecting frame 30. At this time, the connecting frame 30 drives the limit block 308 on the surface to rotate, so that the end of the limit block 308 contacts the surface of the axle. At this time, the position of the axle can be fixed, and the axle can be fixed to the surface of the connecting frame 30.

[0035] The hollow axle flaw detector of the EMU is convenient for multi-directional detection of the axle. The specific implementation method is as follows:

[0036] A rotating mechanism is provided on the surface of the base 10, and the rotating mechanism includes: side panels 40 are symmetrically fixedly connected to the surface of the base 10, and a motor 401 is installed on the surface of one side panel 40, and a connecting rod 402 is fixedly connected to the end of the output shaft of the motor 401, sliders 404 are embedded and slidably installed on the surfaces of the two side panels 40, and a cross plate 403 is fixedly connected between the two sliders 404, a detector 405 is installed on the surface of the cross plate 403, one side of the connecting rod 402 is connected to the opposite surface of the cross plate 403, the side panels 40 are symmetrically arranged on both sides of the connecting frame 30, and the side panels 40 are arranged in an arc-shaped structure, a slide groove is provided on the surface of the side panel 40, and the slider 404 is arranged inside the slide groove of the side panel 40, and the side panel 40 and the slider 404 are slidably connected.

[0037] Start the motor 401, and the output shaft of the motor 401 drives the connecting rod 402 to rotate, so that the connecting rod 402 rotates on the surface of the side plate 40, and the connecting rod 402 drives the cross plate 403 to rotate. At this time, the cross plate 403 drives the slider 404 to rotate, so that the slider 404 rotates inside the slide groove of the side plate 40, which can increase the rotation stability of the cross plate 403. At the same time, the cross plate 403 drives the surface detector 405 to rotate, so that the detector 405 rotates on the surface of the side plate 40, and can rotate on the surface of the axle in multiple directions to detect the axle.

[0038] Working principle: When using the EMU hollow axle flaw detector with a displacement scanning structure, a connecting rod 402, a cross plate 403, a slider 404 and a detector 405 are provided to facilitate multi-directional detection of the axle, and a vertical plate 304, a rack 305, a rotating rod 306, a gear 307 and a limit block 308 are provided to facilitate fixing the position of the axle, thereby increasing the overall practicality.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hollow axle flaw detector for a train set with a displacement scanning structure, comprising a base (10) provided with a square structure, and support plates (20) symmetrically provided on the surface of the base (10); Features: The surface of the base (10) is provided with a rotating mechanism, and the rotating mechanism comprises: the surface of the base (10) is symmetrically fixedly connected with side panels (40), and a motor (401) is installed on the surface of one side panel (40), and a connecting rod (402) is fixedly connected to the end of the output shaft of the motor (401), the surfaces of the two side panels (40) are both embedded with sliders (404) for sliding installation, and a cross plate (403) is fixedly connected between the two sliders (404), a detector (405) is installed on the surface of the cross plate (403), and one side of the connecting rod (402) is connected to the opposite surface of the cross plate (403).

2. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 1, characterized in that: The surface of the base (10) is provided with a limiting mechanism, and the limiting mechanism comprises: the base (10) is connected with a connecting frame (30), and the surface of the connecting frame (30) is provided with a receiving plate (301), the surface of the receiving plate (301) is symmetrically embedded with a sliding rod (302), and the bottom of the sliding rod (302) passes through the bottom of the base (10) and is connected with a spring (303), the surface of the connecting frame (30) is connected with a vertical plate (304), and the end of the spring (303) is connected to the surface of the vertical plate (304), the surface of the sliding rod (302) is fixedly connected with a rack (305), the surface of the connecting frame (30) is connected with a rotating rod (306), and the surface of the rotating rod (306) is symmetrically provided with a gear (307), and the surface of the gear (307) is fixedly connected with a limiting block (308).

3. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 2, characterized in that: The receiving plate (301) is arranged as an inclined plane, and the connecting frame (30) and the sliding rod (302) are slidably connected.

4. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 2, characterized in that: The positions of the rack (305) and the gear (307) are arranged correspondingly, and the rack (305) and the gear (307) are meshingly connected.

5. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 2, characterized in that: The rotating rod (306) is rotatably connected to the connecting frame (30), and the supporting plates (20) are symmetrically arranged on both sides of the connecting frame (30).

6. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 2, characterized in that: The side plates (40) are symmetrically arranged on both sides of the connecting frame (30), and the side plates (40) are arranged in an arc-shaped structure.

7. The EMU hollow axle flaw detector with a displacement scanning structure according to claim 1, characterized in that: A sliding groove is arranged on the surface of the side plate (40), and the sliding block (404) is arranged inside the sliding groove of the side plate (40), and the side plate (40) and the sliding block (404) are slidably connected.

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