Portable motor train unit wheel axle surface scratch depth measuring device

Abstract

Portable motor train unit wheel axle surface scratch depth measuring device, including probe instrument body, the probe instrument body below is provided with installation part, the installation part is provided with support leg in, the support leg lower extreme is provided with contact wheel, the probe instrument body both sides are provided with storage groove, the storage groove is provided with telescopic support in, be provided with connecting rod on telescopic support, be provided with folding rod on connecting rod, be provided with magnetic yoke column on folding rod, be provided with connecting buckle on connecting rod;Through the support leg with installation plate cooperation of installation part, make the filling body can be disassembled installation contact wheel, can be applicable to different length's support leg, convenient installation and disassembly, through the use of support leg and contact wheel adhesion axle, make the last data stable and accurate, through telescopic support and detachable connecting rod can be applicable to axle body different size each part, adapt to different position axle section, single person can complete whole axle detection, improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of axle flaw detection, and in particular to a portable device for measuring the depth of scratches on the surface of high-speed train wheel axles. Background Technology

[0002] The large gear axle of a high-speed train plays a crucial role in the power transmission system of railway vehicles. Its main function is to transmit power from the motor to the axle. Generally, the axle is made of high-strength alloy steel and undergoes rigorous heat treatment and precision machining processes to achieve the required mechanical properties. Although its manufacturing process is relatively strict, due to its special operating environment and wear and tear, especially during train start-up, acceleration, deceleration, and operation, the axle is subjected to various impacts and vibrations. Therefore, high-speed train axles are generally inspected and maintained after a certain mileage, typically undergoing defect detection after 200,000 kilometers.

[0003] When detecting the scratch depth on the surface of axles, magnetic particle testing is usually used. Existing magnetic particle testing instruments require manual spraying of magnetic powder, followed by suspending the instrument above the axle for magnetic flux transfer, and then locating and detecting defects on the axle. However, axles are large in size, and when measuring slowly by hand, the instrument needs to be suspended above the axle for a long time, which makes it impossible to stably confirm the position and thus leads to inaccurate data. Furthermore, the long-term suspension testing is inefficient. To solve the above problems, a portable EMU wheel axle surface scratch depth measuring device is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problems of inaccurate data and low efficiency caused by prolonged suspension.

[0005] The present invention adopts the following technical solution:

[0006] A portable device for measuring the surface scratch depth of a train axle includes a detector body, a mounting part at the bottom of the detector body, a support leg inside the mounting part, a contact wheel at the lower end of the support leg, storage slots on both sides of the detector body, a telescopic frame inside the storage slots, a connecting rod on the telescopic frame, a folding rod on the connecting rod, a magnetic yoke on the folding rod, and a connecting buckle on the connecting rod.

[0007] Furthermore, a mounting plate is fixedly provided on the upper end of the support leg, and there are protruding protrusions on both sides of the mounting plate. The mounting plate extends into the mounting part to connect the support leg with the detector body. Mounting parts are respectively provided on both sides of the lower surface of the detector body.

[0008] The mounting part includes two symmetrically arranged insertion slots. The protrusions on both sides of the mounting plate cooperate with the two insertion slots. There is a gap between the two insertion slots for the support leg to pass through. Each insertion slot has an upwardly inclined guide groove inside. The guide groove has a limit groove inside. The height of the limit groove is higher than the highest point of the guide groove. A spring is provided at the bottom of the limit groove. A limit block is provided above the spring. The end of the limit block near the guide groove has an inclined surface for the mounting plate to enter the limit groove.

[0009] Furthermore, each support leg has a contact wheel for contacting the axle body, and each contact wheel has a rubber ring to reduce friction on the axle and reduce damage.

[0010] Furthermore, the detector body is provided with storage slots on both sides, each storage slot containing a telescopic frame. The two telescopic frames are arranged symmetrically. The telescopic frame is pulled out from the storage slot, and the end of the telescopic frame has a limit block to prevent it from falling out completely.

[0011] Furthermore, the other end of the telescopic frame has a slot, the upper end of the connecting rod has a plug that engages with the slot of the telescopic frame and is fixed by bolts, the lower end of the connecting rod is provided with a folding rod via a pivot, the other end of the folding rod is fixed with a magnetic yoke column, the magnetic yoke column is electrically connected to the detector body, and the folding rod and the connecting rod are connected by a connecting buckle;

[0012] Furthermore, the detector body has a handle for easy gripping and movement, a battery to power the magnetic yoke column and make it magnetic, a detection light on the lower surface of the detector body powered by the battery to observe the specific results of the axle, and a module for transmitting signals to the outside world to transmit the detected data.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a detachable mounting bracket with a mounting plate and a mounting section, allowing the detector body to be disassembled and fitted with contact wheels. It accommodates support legs of varying lengths, enabling selection based on axle dimensions. This enhances the device's adaptability to different axle specifications, facilitating installation and disassembly. By using the support legs and contact wheels to conform to the axle, continuous manual support is eliminated, reducing personnel workload. Rubber rings on the contact wheels reduce friction and damage to the axle, ensuring stable and accurate data. The telescopic frame can be pulled out of the storage slot, and with the detachable connecting rod and folding rod, the position and angle of the magnetic yoke can be flexibly adjusted to fit different axle sizes, meeting full axle inspection needs. A single person can complete the full axle inspection, improving inspection efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a utility model portable high-speed train wheel axle surface scratch depth measuring device;

[0016] Figure 2 This is a front view of a utility model portable EMU wheel axle surface scratch depth measuring device;

[0017] Figure 3 An exploded structural diagram of a utility model portable high-speed train wheel axle surface scratch depth measuring device;

[0018] Figure 4 A partial structural schematic diagram of a utility model portable high-speed train wheel axle surface scratch depth measuring device;

[0019] Figure 5 A schematic diagram illustrating the structure of a utility model portable high-speed train wheel axle surface scratch depth measuring device.

[0020] Figure 6 A partial structural schematic diagram of a utility model portable high-speed train wheel axle surface scratch depth measuring device;

[0021] Figure 7 A schematic diagram of part of the internal structure of a utility model portable EMU wheel axle surface scratch depth measuring device;

[0022] In the diagram: 1. Detector body; 2. Support leg; 3. Contact wheel; 4. Rubber ring; 5. Storage slot; 6. Telescopic frame; 7. Connecting rod; 8. Folding rod; 9. Magnetic yoke column; 10. Connecting buckle; 11. Battery; 12. Handle; 13. Axle body; 14. Mounting part; 15. Insertion slot; 16. Guide slot; 17. Limiting slot; 18. Limiting block; 19. Spring; 20. Searchlight; 21. Mounting plate. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Example 1

[0027] This utility model provides a portable device for measuring the depth of scratches on the surface of a train wheel axle, including a detector body 1, a mounting part 14 is provided below the detector body 1, a support leg 2 is provided inside the mounting part 14, a contact wheel 3 is provided at the lower end of the support leg 2, storage slots 5 are provided on both sides of the detector body 1, a telescopic frame 6 is provided inside the storage slots 5, a connecting rod 7 is provided on the telescopic frame 6, a folding rod 8 is provided on the connecting rod 7, a magnetic yoke 9 is provided on the folding rod 8, and a connecting buckle 10 is provided on the connecting rod 7;

[0028] Furthermore, a mounting plate 21 is fixedly provided on the upper end of the support leg 2. There are protruding protrusions on both sides of the mounting plate 21. The mounting plate 21 extends into the mounting part 14 to connect the support leg 2 with the detector body 1. Mounting parts 14 are respectively provided on both sides of the lower surface of the detector body 1.

[0029] The mounting part 14 includes two symmetrically arranged insertion slots 15. The protrusions on both sides of the mounting plate 21 cooperate with the two insertion slots 15. There is a gap between the two insertion slots 15 for the support leg 2 to pass through. Each insertion slot 15 has an upwardly inclined guide groove 16 inside. The guide groove 16 has a limiting groove 17 inside. The height of the limiting groove 17 is higher than the highest point of the guide groove 16. A spring 19 is provided at the bottom of the limiting groove 17. A limiting block 18 is provided above the spring 19. The end of the limiting block 18 near the guide groove 16 has an inclined surface for the mounting plate 21 to enter the limiting groove 17.

[0030] Furthermore, each support leg 2 has a contact wheel 3 for contacting the axle body 13, and each contact wheel 3 has a rubber ring 4 to reduce friction on the axle and reduce damage.

[0031] Furthermore, storage slots 5 are provided on both sides of the detector body 1, and each storage slot 5 contains a telescopic frame 6. The two telescopic frames 6 are arranged symmetrically. The telescopic frame 6 can be pulled out from the storage slot 5, and the end of the telescopic frame 6 has a limit block 18 to prevent it from falling out completely.

[0032] Furthermore, the other end of the telescopic frame 6 has a slot, the upper end of the connecting rod 7 has a plug that engages with the slot of the telescopic frame 6 and is fixed by bolts, the lower end of the connecting rod 7 is provided with a folding rod 8 via a pivot, the other end of the folding rod 8 is fixed with a magnetic yoke 9, the magnetic yoke 9 is electrically connected to the detector body 1, and the folding rod 8 and the connecting rod 7 are connected by a connecting buckle 10.

[0033] Furthermore, the detector body 1 has a handle 12 for easy gripping and movement, a battery 11 for powering the magnetic yoke column 9 and making it magnetic, a detection light on the lower surface of the detector body 1 powered by the battery 11 for observing the specific results of the axle, and a module for transmitting signals to the outside world for transmitting the detection data.

[0034] Working principle:

[0035] In use, the support leg 2 of appropriate length and the mounting plate 21 are inserted into the mounting part 14. The protrusions on both sides of the mounting plate 21 enter the mounting part 14 along the insertion groove 15 and are pushed inward. The mounting plate 21 continues to move along the upwardly inclined guide groove 16. The inclined surface of the limiting block 18 is connected to the inclined surface of the guide groove 16. The mounting plate 21 moves along the inclined surface of the limiting block 18 to the limiting groove 17. At this time, the limiting block 18 is squeezed downward, and the lower spring 19 contracts, pushing the limiting block 18 and the mounting plate 21 upward. Since the height of the limiting groove 17 is higher than the highest point of the guide groove 16, the mounting plate 21 is restricted within the limiting groove 17, thus completing the installation of the support leg 2. Installation: Hold the detector body 1 with the handle 12 and place it on the surface of the cylindrical axle body 13. Place the contact wheel 3 against the axle body 13. When the contact wheel 3 is against the axle body 13, the detector body 1 exerts downward force to ensure that the mounting plate 21 remains against the upper surface of the limiting groove 17, preventing the mounting plate 21 from falling out of the limiting groove 17. The support legs 2 maintain a fixed distance between the detector body 1 and the axle, eliminating the need for constant suspension and reducing personnel burden. The rubber ring 4 on the contact wheel 3 reduces friction on the axle, minimizing damage. Pull out the telescopic bracket 6 from the two storage slots 5, and select the appropriate magnetic yoke 9 and connecting rod 7. The connecting rod 7 is connected to the telescopic frame 6 by bolts through the slot of the upper end of the connecting rod 7 and the slot of the telescopic frame 6. Then, the connecting buckle 10 is opened and the folding rod 8 is flipped down around the connecting rod 7, so that the magnetic yoke 9 contacts the axle body 13. At this time, the two magnetic yoke 9 are located on both sides of the axle. The magnetic yoke 9 are powered by the battery 11 to make them magnetic. Magnetic suspension liquid is evenly sprayed onto the axle. The searchlight 20 under the detector body 1 is turned on by the power of the battery 11 to observe the magnetic traces. The detected data is transmitted to the outside through the transmission module. Grab the handle 12 and push the whole device forward to perform a comprehensive detection of the axle body 13. When the support leg 2 needs to be disassembled, lift the entire device and pull the support leg 2 downward to separate the support leg 2 and the mounting plate 21 from the upper surface of the limiting groove 17. At this time, the limiting block 18 is driven to move downward, further compressing the spring 19. When the inclined surface of the limiting block 18 is connected to the inclined surface of the guide groove 16, the mounting plate 21 is pulled outward. The mounting plate 21 leaves the detector body 1 along the guide groove 16 and the insertion groove 15, completing the disassembly. When performing flaw detection on axle bodies 13 of different sizes, select different models of magnetic yokes 9 and install them on the telescopic frame 6 through the connecting rod 7 so that the magnetic yokes 9 can be located at different diameters of the axle body 13 during testing.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable device for measuring the depth of scratches on the surface of high-speed train wheel axles, characterized in that, The detector body (1) includes a mounting part (14) below the detector body (1), a support leg (2) is provided in the mounting part (14), a contact wheel (3) is provided at the lower end of the support leg (2), a storage slot (5) is provided on both sides of the detector body (1), a telescopic frame (6) is provided in the storage slot (5), a connecting rod (7) is provided on the telescopic frame (6), a folding rod (8) is provided on the connecting rod (7), a magnetic yoke (9) is provided on the folding rod (8), and a connecting buckle (10) is provided on the connecting rod (7).

2. The portable EMU wheel axle surface scratch depth measuring device according to claim 1, characterized in that, The upper end of the support leg (2) is fixedly provided with a mounting plate (21). The mounting plate (21) has protruding protrusions on both sides. The mounting plate (21) extends into the mounting part (14) to connect the support leg (2) with the detector body (1). The lower surface of the detector body (1) is provided with mounting parts (14) on both sides respectively.

3. The portable EMU wheel axle surface scratch depth measuring device according to claim 2, characterized in that, The mounting part (14) includes two symmetrically arranged insertion slots (15). The protrusions on both sides of the mounting plate (21) cooperate with the two insertion slots (15). There is a gap between the two insertion slots (15) for the support leg (2) to pass through. Each insertion slot (15) has an upwardly inclined guide groove (16) inside. The guide groove (16) has a limiting groove (17) inside. The height of the limiting groove (17) is higher than the highest point of the guide groove (16). A spring (19) is provided at the bottom of the limiting groove (17). A limiting block (18) is provided above the spring (19). The end of the limiting block (18) near the guide groove (16) has an inclined surface for the mounting plate (21) to enter the limiting groove (17).

4. The portable EMU wheel axle surface scratch depth measuring device according to claim 3, characterized in that, Each support leg (2) has a contact wheel (3) for contacting the axle body (13). Each contact wheel (3) has a rubber ring (4) to reduce friction on the axle and reduce damage.

5. The portable EMU wheel axle surface scratch depth measuring device according to claim 4, characterized in that, The detector body (1) has storage slots (5) on both sides, and each storage slot (5) has a telescopic frame (6). The two telescopic frames (6) are arranged symmetrically. The telescopic frame (6) is pulled out from the storage slot (5), and the end of the telescopic frame (6) has a limit block (18) to prevent it from falling out completely.

6. The portable EMU wheel axle surface scratch depth measuring device according to claim 5, characterized in that, The telescopic frame (6) has a slot at the other end. The upper end of the connecting rod (7) has a plug that engages with the slot of the telescopic frame (6) and is fixed by bolts. The lower end of the connecting rod (7) is provided with a folding rod (8) via a pivot. The other end of the folding rod (8) is fixed with a magnetic yoke column (9). The magnetic yoke column (9) is electrically connected to the detector body (1). The folding rod (8) and the connecting rod (7) are connected by a connecting buckle (10).

7. The portable EMU wheel axle surface scratch depth measuring device according to claim 6, characterized in that, The detector body (1) has a handle (12) for easy gripping and movement. The detector body (1) has a battery (11) for powering the magnetic yoke column (9) to make it magnetic. The detector body (1) has a detection lamp on its lower surface, which is powered by the battery (11) for observing the specific results of the axle. The detector body (1) has a module for transmitting signals to the outside world for transmitting the detection data.

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