Ultrasonic flaw detection device for hollow axle of motor train unit

Abstract

The ultrasonic flaw detection device comprises a shell, universal wheels are mounted on the lower surface of the shell, the ultrasonic flaw detection device further comprises a first air cylinder, the first air cylinder is mounted on the bottom surface of the inner wall of the shell, the shell is connected with an adjusting structure, and the adjusting structure can drive a dial to adjust the height through a supporting column. The adjusting structure comprises a connecting plate, the connecting plate is fixedly installed at the upper end of the first air cylinder, the connecting plate is slidably connected with the surface of the inner wall of the shell, a supporting column is fixedly installed on the upper surface of the connecting plate, and a dial is fixedly installed at the upper end of the supporting column. According to the ultrasonic flaw detection device for the hollow axle of the motor train unit, the adjusting structure is arranged, clamping between the clamping block and the dial can be lost during rotation, the angle is more accurate according to rotation of the dial, the supporting structure is further arranged, and the supporting block can drive the pressing ring to clamp the telescopic rod more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flaw detection devices, in particular to an ultrasonic flaw detection device for a hollow axle of a motor vehicle group. Background Art

[0002] The rapid development of high-speed railways has brought great convenience to people's daily life and economic operation. In order to meet the requirements of high-speed operation, high-speed trains must be designed to be lightweight. Hollowing out the axle to reduce weight is an important part of lightweight design. However, as the load-bearing and guiding component of high-speed trains, the quality of the axle determines the safety of train operation. Therefore, it is necessary to perform nondestructive testing on the quality of the axle.

[0003] When using the ultrasonic flaw detection device, the flaw detection head needs to be aligned with the axle before being inserted for detection. Therefore, the height needs to be adjusted and the steering direction needs to be turned to correspond to the axle. The adjustment operation is complicated and the axle needs to be aligned, making the adjustment inconvenient. The direction needs to be turned as a whole, which places a high degree of dependence on the staff. Utility Model Content

[0004] The utility model aims to provide an ultrasonic flaw detection device for hollow axles of EMUs, so as to solve the problems of inconvenient adjustment, the need for overall rotation for turning the direction and high dependence on staff in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic flaw detection device for hollow axles of EMUs, comprising a shell, a universal wheel is installed on the lower surface of the shell, and a cylinder is installed on the bottom surface of the inner wall of the shell. The shell is connected to an adjustment structure, and the adjustment structure can drive a dial to adjust the height through a support column.

[0006] Preferably, the adjustment structure includes a connecting plate, which is fixedly mounted on the upper end of cylinder one and is slidably connected to the inner wall surface of the outer shell, a support column is fixedly mounted on the upper surface of the connecting plate, a dial is fixedly mounted on the upper end of the support column, a rotating plate is rotatably mounted on the upper surface of the dial, a groove is provided on the side surface of the rotating plate, a spring is installed on the inner wall surface of the groove, the spring is connected to a clamping block, the upper end of the clamping block is slidably connected to the groove on the side surface of the rotating plate, and the lower end of the clamping block is clamped and connected to the dial.

[0007] By adopting the above technical solution, the overall height can be changed by cylinder 1, and can be quickly adjusted by the cooperation of the dial and the clamping block during rotation.

[0008] Preferably, the upper surface of the dial is engraved with angle degree markings.

[0009] The above technical solution is adopted to facilitate determination of the adjustment angle.

[0010] Preferably, the clamping block is configured as a C-shaped structure.

[0011] The above technical solution is adopted to facilitate the engagement of the clamping block with the scale plate.

[0012] Preferably, a support structure is installed on the upper surface of the rotating plate, and the support structure can cooperate with the pressure ring through the support block to make the telescopic rod more stable when telescoping.

[0013] The above technical solution is adopted to avoid deviation during flaw detection.

[0014] Preferably, the supporting structure includes a connecting warehouse, which is fixedly mounted on the upper surface of the rotating plate, a control box is fixedly mounted on the upper surface of the connecting warehouse, a cylinder 2 is fixedly mounted on the inner wall side surface of the connecting warehouse, a support block is fixedly mounted on the side surface of the connecting warehouse, the upper surface of the support block contacts the lower surface of the telescopic rod, a piston rod is fixedly mounted on the inner wall bottom surface of the support block, the piston rod is through-connected with an airbag, and the side surface of the airbag is connected to the push rod of cylinder 2, a pressure ring is fixedly connected to the upper end of the piston rod, a control box is installed on the upper surface of the connecting warehouse, the side surface of the control box is control-connected with the telescopic rod, and the side end of the telescopic rod is fixedly connected with a probe.

[0015] By adopting the above technical solution, the telescopic rod is clamped by the pressure ring and the support block, making the telescopic rod more stable.

[0016] Preferably, the pressure ring is configured as an arc-shaped semicircular ring structure.

[0017] By adopting the above technical solution, the pressure ring can adapt to the outer surface of the telescopic rod.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the ultrasonic flaw detection device for hollow axles of EMUs:

[0019] 1. The ultrasonic flaw detection device for hollow axles of EMUs is provided with an adjustment structure. When adjusting the height, the cylinder 1 is first controlled to open, and then the cylinder 1 passes through the connecting plate to make the support column push the rotating plate upward to change the height, so that the probe is opposite to the detection axle;

[0020] 2. Further, when rotation is required, the card block is pulled outward so that the card block and the scale plate lose engagement, and then the rotating plate is rotated on the upper surface of the scale plate so that the card block and the scale plate can determine the rotation angle, thereby making the rotation angle more accurate;

[0021] 3. Furthermore, a support structure is provided, which supports the lower surface of the telescopic rod through a support block. At the same time, cylinder 2 is opened, and the airbag is stretched to suck the airflow in the piston rod, so that the piston rod drives the pressure ring to clamp the telescopic rod, making the probe more stable during penetration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the outer surface structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the front sectional structure of the utility model on the axial side;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the dial of the utility model when viewed from above.

[0026] In the figure: 1. outer shell; 2. cylinder one; 3. connecting plate; 4. support column; 5. dial; 6. rotating plate; 7. spring; 8. clamping block; 9. connecting chamber; 10. cylinder two; 11. support block; 12. airbag; 13. piston rod; 14. pressure ring; 15. control box; 16. telescopic rod; 17. probe. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-4 The utility model provides a technical solution: an ultrasonic flaw detection device for hollow axles of EMUs, comprising a shell 1, a cylinder 1 2, a connecting plate 3, a supporting column 4, a dial 5, a rotating plate 6, a spring 7, a clamping block 8, a connecting bin 9, a cylinder 2 10, a supporting block 11, an airbag 12, a piston rod 13, a pressure ring 14, a control box 15, a telescopic rod 16, and a probe 17.

[0029] Example 1

[0030] The ultrasonic flaw detection device for hollow axles of EMUs is provided with an adjustment structure so that the probe 17 can flexibly correspond to the axle to be detected, specifically:

[0031] A universal wheel is installed on the lower surface of the shell 1, and it also includes a cylinder 2. The cylinder 2 is installed on the bottom surface of the inner wall of the shell 1. The shell 1 is connected with an adjustment structure, and the adjustment structure can drive the dial 5 to adjust the height through the support column 4. The adjustment structure includes a connecting plate 3, the connecting plate 3 is fixedly installed on the upper end of the cylinder 2, and the connecting plate 3 is slidably connected to the inner wall surface of the shell 1, the upper surface of the connecting plate 3 is fixedly installed with a support column 4, the upper end of the support column 4 is fixedly installed with a dial 5, the upper surface of the dial 5 is rotatably installed with a rotating plate 6, the side surface of the rotating plate 6 is provided with a groove, the inner wall surface of the groove is installed with a spring 7, the spring 7 is connected with a clamping block 8, the upper end of the clamping block 8 is slidably connected with the groove on the side surface of the rotating plate 6, the lower end of the clamping block 8 is clamped and connected with the dial 5, the upper surface of the dial 5 is engraved with an angle degree mark, and the clamping block 8 is set as a C-shaped structure.

[0032] When the ultrasonic flaw detection device for hollow axles of EMUs is used, Figure 1 As shown, first, it is necessary to open the cylinder 2 installed on the bottom surface of the inner wall of the shell 1, so that the cylinder 2 will push the connecting plate 3 to slide upward on the inner wall surface of the shell 1, so that the supporting column 4 on the upper surface of the connecting plate 3 pushes the dial 5 upward. Since the upper surface of the dial 5 is connected with the rotating plate 6, the rotating plate 6 pushes the probe 17 upward so that the probe 17 corresponds to the detected axle. Further, when the probe 17 needs to rotate, first slide the upper end of the block 8 out of the empty slot of the rotating plate 6, and then the spring 7 will be stretched, so that the lower end of the block 8 loses the engagement with the dial 5, and then the rotating plate 6 is rotated on the upper surface of the dial 5, as shown in FIG. Figure 4 As shown, the rotation angle is determined by the correspondence between the dial 5 and the clamping block 8, so that the rotation is more accurate. Then, after the clamping block 8 is loosened, the clamping block 8 is engaged with the dial 5 to facilitate angle adjustment.

[0033] Example 2

[0034] The ultrasonic flaw detection device for hollow axles of EMUs is also provided with a support structure, and the support block 11 cooperates with the pressure ring 14 to make the telescopic rod 16 more stable when telescoping, specifically:

[0035] A supporting structure is installed on the upper surface of the rotating plate 6, and the supporting structure can cooperate with the pressure ring 14 through the support block 11 to make the telescopic rod 16 more stable when telescoping. The supporting structure includes a connecting warehouse 9, which is fixedly installed on the upper surface of the rotating plate 6, and a control box 15 is fixedly installed on the upper surface of the connecting warehouse 9. The inner wall side surface of the connecting warehouse 9 is fixedly installed with a cylinder 10, and the side surface of the connecting warehouse 9 is fixedly installed with a support block 11. The upper surface of the support block 11 contacts the lower surface of the telescopic rod 16, and the inner wall bottom surface of the support block 11 is fixedly installed with a piston rod 13. The piston rod 13 is connected with an air bag 12 through it, and the side surface of the air bag 12 is connected to the push rod of the cylinder 10, and the upper end of the piston rod 13 is fixedly connected with a pressure ring 14, and a control box 15 is installed on the upper surface of the connecting warehouse 9. The side surface of the control box 15 is control-connected with the telescopic rod 16, and the side end of the telescopic rod 16 is fixedly connected with a probe 17, and the pressure ring 14 is set as an arc-shaped semicircular ring structure;

[0036] When performing flaw detection, Figure 3 As shown, the probe 17 corresponds to the axle, a support block 11 is fixedly installed on the upper surface of the rotating plate 6, and the lower surface of the telescopic rod 16 is supported by the support block 11, and then the cylinder 2 10 inside the connecting compartment 9 is opened, and the push rod of the cylinder 2 10 is connected to the side surface of the airbag 12, so that the push rod of the cylinder 2 10 stretches the airbag 12, and since the piston rod 13 is connected with the airbag 12, the airbag 12 sucks the airflow of the piston rod 13, so that the piston rod 13 retracts, thereby driving the pressure ring 14 fixedly connected to the upper end of the piston rod 13 to move downward, and then the pressure ring 14 will press the upper surface of the telescopic rod 16, so that the front end of the telescopic rod 16 is more stable, and further, the control box 15 controls the telescopic rod 16 to push the probe 17, so that the probe 17 probes into the empty shaft for detection.

[0037] Working principle: When using the ultrasonic flaw detection device for hollow axles of EMUs, an adjustment structure is provided, which can make the rotation angle more precise through the dial 5. A supporting structure is also provided, which can drive the pressure ring 14 to clamp the telescopic rod 16 more stably through the support block 11, thereby increasing the overall practicality.

[0038] 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. An ultrasonic flaw detection device for hollow axles of EMUs, comprising a housing (1), a universal wheel being mounted on the lower surface of the housing (1), characterized in that: The invention also comprises a cylinder (2), wherein the cylinder (2) is mounted on the bottom surface of the inner wall of the outer shell (1), the outer shell (1) is connected with an adjustment structure, and the adjustment structure can drive a dial (5) to adjust the height through a support column (4), and the adjustment structure comprises a connecting plate (3), wherein the connecting plate (3) is fixedly mounted on the upper end of the cylinder (2), and the connecting plate (3) is slidably connected to the inner wall surface of the outer shell (1), the upper surface of the connecting plate (3) is fixedly mounted with a support column (4), the upper end of the support column (4) is fixedly mounted with a dial (5), the upper surface of the dial (5) is rotatably mounted with a rotating plate (6), the side surface of the rotating plate (6) is provided with a groove, the inner wall surface of the groove is mounted with a spring (7), the spring (7) is connected with a clamping block (8), the upper end of the clamping block (8) is slidably connected to the groove of the side surface of the rotating plate (6), and the lower end of the clamping block (8) is clamped and connected with the dial (5).

2. The ultrasonic flaw detection device for hollow axles of EMUs according to claim 1 is characterized in that: The upper surface of the scale plate (5) is engraved with angle degree markings.

3. The ultrasonic flaw detection device for hollow axles of EMUs according to claim 2 is characterized in that: The clamping block (8) is configured as a C-shaped structure.

4. The ultrasonic flaw detection device for hollow axles of EMUs according to claim 1 is characterized in that: A support structure is installed on the upper surface of the rotating plate (6), and the support structure can cooperate with the pressure ring (14) through the support block (11) to make the telescopic rod (16) more stable when telescoping.

5. The ultrasonic flaw detection device for hollow axles of EMUs according to claim 4 is characterized in that: The supporting structure comprises a connecting chamber (9), the connecting chamber (9) being fixedly mounted on the upper surface of the rotating plate (6), a control box (15) being fixedly mounted on the upper surface of the connecting chamber (9), a cylinder 2 (10) being fixedly mounted on the inner wall side surface of the connecting chamber (9), a supporting block (11) being fixedly mounted on the side surface of the connecting chamber (9), the upper surface of the supporting block (11) being in contact with the lower surface of the telescopic rod (16), and the inner wall bottom of the supporting block (11) being in contact with the lower surface of the telescopic rod (16). A piston rod (13) is fixedly mounted on the surface, the piston rod (13) is connected to an air bag (12) through the piston rod (13), and the side surface of the air bag (12) is connected to the push rod of the second cylinder (10), the upper end of the piston rod (13) is fixedly connected to a pressure ring (14), the upper surface of the connecting chamber (9) is mounted with a control box (15), the side surface of the control box (15) is controllably connected to a telescopic rod (16), and the side end of the telescopic rod (16) is fixedly connected to a probe (17).

6. The ultrasonic flaw detection device for hollow axles of EMUs according to claim 5 is characterized in that: The pressure ring (14) is configured as an arc-shaped semicircular ring structure.

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