Axle residual stress detection platform
The car axle residual stress detection platform addresses the limitations of existing systems by providing adjustable and rotatable supports with a three-jaw chuck for precise axle positioning, enhancing the accuracy and stability of X-ray diffraction tests on axles of varying sizes.
Patent Information
- Application Number
- CN202422390996.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing axle residual stress detection platform cannot accurately adjust the angle and parallelism, cannot install the detection indexing head of X-ray diffraction method, and the support device is fixed and cannot move, resulting in the inability to detect axles of different lengths, and the detection accuracy is insufficient.
A residual stress detection platform for axle is designed, using multiple legs, guide rails and lifting components, combined with a three-claw chuck and a worm gear lifting device to realize the rotation, angle adjustment and position fixation of the axle. It is equipped with universal wheels for easy movement and supports the detection of axles of different lengths.
It realizes the precise rotation and angular positioning of the axle, supports the detection of axles of different lengths, improves the detection accuracy and platform mobility, and meets the detection requirements of X-ray diffraction method.
Smart Images
Figure CN223107105U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of axle detection, and particularly relates to a detection platform for residual stress of axles. Background Art
[0002] The detection of residual stress of axles of high-speed trains is an important link to ensure the safe operation of trains, especially in high-speed railway transportation. As a key component of trains, axles bear huge loads, and their performance directly affects the operation safety of trains and the comfort of passengers. Residual stress refers to the stress remaining inside the material due to incomplete release of internal stress during the manufacturing, processing or heat treatment of the material. These stresses may cause changes in the microstructure of the material, even lead to cracks or fatigue over a long period of use or in a specific environment, thereby affecting the service life of axles and the safety of trains. The commonly used axle residual stress detection technologies in the company at present are: 1. X-ray diffraction method (RD); 2. Drilling detection method (small hole method). The existing axle residual stress detection platform is a movable rack with two axle support devices on it. However, only one end of the two axle support devices of the existing detection platform can be adjusted in height, and the angle and parallelism cannot be accurately adjusted, nor can the detection indexing head of the X-ray diffraction method be installed. The positions of the two support devices are fixed and cannot be moved left and right, so axles with shorter dimensions cannot be detected on the existing platform. The existing detection rack is relatively thin and unstable, which will affect the accuracy of the test specimens and detection heads, and cannot meet our requirements for residual stress testing by the X-ray diffraction method. Summary of the Utility Model
[0003] The utility model provides a detection platform for residual stress of axles aiming at the above problems.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A detection platform for residual stress of axles includes an installation platform. A plurality of legs are provided on the lower surface of the installation platform. Two sets of guide rails are provided on the upper surface of the installation platform. Two axle support platforms are slidably arranged on one set of the guide rails, which are used to support the axle and assist the axle to rotate. An axle fixing and rotating platform is arranged on one side of this set of guide rails, which is used to clamp the axle and drive the axle to rotate. A detection platform is slidably arranged on the other set of the guide rails, which is used to install a detection device;
[0006] The axle fixing and rotating table includes a first fixed seat which is fixed on the installation platform. At the four corners of the upper part of the first fixed seat, first guide sleeves are provided. First guide rods are slidably arranged in the first guide sleeves. The upper ends of the four first guide rods are fixedly connected to a first lifting table. On the upper surface of the first fixed seat, a first lifting assembly is fixedly installed. The output end of the first lifting assembly is connected to the lower surface of the first lifting table to drive the first lifting table to lift. On the upper surface of the first lifting table, an installation housing is fixedly connected. In the installation housing, a first rotating shaft and a second rotating shaft are rotatably installed. The first rotating shaft and the second rotating shaft are arranged perpendicular to each other. A worm and a worm gear are respectively installed on the first rotating shaft and the second rotating shaft. One end of the first rotating shaft extends out of the installation housing and is connected to a rotating wheel. One end of the second rotating shaft extends out of the installation housing and is connected to a three-jaw chuck. The three-jaw chuck is used to fix the axle. An angle scale is provided on the three-jaw chuck. An angle indication line is provided on the upper surface of the installation housing.
[0007] Further, the axle support table includes a second fixed seat which is slidably arranged on the guide rail. At the front and rear sides of the upper part of the second fixed seat, second guide sleeves are provided. Second guide rods are slidably arranged in the second guide sleeves. The upper ends of the two second guide rods are fixedly connected to a second lifting table. On the upper surface of the second fixed seat, a second lifting assembly is fixedly provided. The output end of the second lifting assembly is fixedly connected to the lower surface of the second lifting table to drive the second lifting table to lift. On the upper surface of the second lifting table, two side plates are symmetrically arranged on the left and right. Between the two side plates, two support rollers are rotatably installed. The two support rollers are symmetrically arranged front and rear.
[0008] Still further, the detection table includes a third fixed seat which is slidably arranged on the guide rail. At the front and rear sides of the upper part of the third fixed seat, third guide sleeves are provided. Third guide rods are slidably arranged in the third guide sleeves. The upper ends of the two third guide rods are fixedly connected to a third lifting table. On the upper surface of the third fixed seat, a third lifting assembly is fixedly provided. The output end of the third lifting assembly is fixedly connected to the lower surface of the third lifting table to drive the third lifting table to lift. On the upper surface of the third lifting table, two fixing plates are symmetrically and fixedly arranged front and rear. Between the two fixing plates, a guide post and a lead screw are provided. The guide post is fixedly connected to the fixing plate. The lead screw is rotatably connected to the fixing plate. One end of the lead screw passes through the fixing plate and is connected to a turntable. Between the two fixing plates, a sliding table is provided. The sliding table is slidably connected to the guide post and threadedly connected to the lead screw. The sliding table is used to install the detection device.
[0009] Even further, a distance scale is provided on the upper surface of the third lifting table for measuring the position of the sliding table.
[0010] Furthermore, locking bolts are threadedly connected to the lower parts of the second fixing base and the third fixing base respectively, so as to facilitate the fixation of the positions of the axle support platform and the inspection platform.
[0011] Furthermore, nylon blocks are fixedly arranged at the lower ends of the locking bolts, so as to prevent the locking bolts from scratching the installation platform.
[0012] Furthermore, the first lifting assembly, the second lifting assembly and the third lifting assembly are all worm and worm gear lifting devices.
[0013] Furthermore, universal wheels are arranged at the lower ends of the legs, so as to facilitate the movement of the inspection platform.
[0014] Compared with the existing inspection platforms, the present utility model has the following advantages:
[0015] The three-jaw chuck of the present utility model can directly clamp the axle diameter of the axle and perform center positioning and leveling. The three-jaw chuck is provided with a steering wheel and can also drive the axle to rotate to any angle of 360° for testing. The three-jaw chuck and the axle support platform are on a straight line, and the fixation and installation testing of axles with different lengths can be realized. There is an inspection platform on the side of the three-jaw chuck where an X-ray detection head can be installed. The inspection platform can be lifted and translated left and right along the guide rail, and the inspection of axles with different diameters and different lengths can be realized. The present utility model is provided with universal wheels on the legs for better movement.
[0016] The present utility model can drive the axle to rotate through the three-jaw chuck. At the same time, angle scales are set on the three-jaw chuck, which can accurately position the rotation angle of the axle and facilitate the positioning of the axle inspection position. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is a schematic structural diagram of the axle fixing and rotating table of the present utility model;
[0019] Figure 3 is a schematic structural diagram of the axle support platform of the present utility model;
[0020] Figure 4 is a schematic structural diagram of the inspection platform of the present utility model;
[0021] In the figure, there is an installation platform 1, support legs 2, guide rails 3, axle support platforms 4, axle fixed rotation platforms 5, inspection platforms 6, universal wheels 7, first fixed seats 501, first guide sleeves 502, first guide rods 503, first lifting platforms 504, first lifting components 505, installation housings 506, first rotating shafts 507, second rotating shafts 508, worm gears 509, worm wheels 510, rotating wheels 511, three-jaw chucks 512, angle scales 513, angle indicating lines 514, second fixed seats 401, second guide sleeves 402, second guide rods 403, second lifting platforms 404, second lifting components 405, side plates 406, support rollers 407, locking bolts 408, nylon blocks 409, third fixed seats 601, third guide sleeves 602, third guide rods 603, third lifting platforms 604, third lifting components 605, fixing plates 606, guide columns 607, lead screws 608, turntables 609, sliding platforms 610, distance scales 611. Detailed implementation mode
[0022] In order to further elaborate on the technical solution of the present invention, the present invention will be further described below through embodiments.
[0023] As Figures 1 to 4 shown, an axle residual stress detection platform includes an installation platform 1. A plurality of support legs 2 are provided on the lower surface of the installation platform 1. Universal wheels 7 are provided at the lower ends of the support legs 2 to facilitate the movement of the detection platform. Two groups of guide rails 3 are provided on the upper surface of the installation platform 1. Two axle support platforms 4 are slidably arranged on one group of guide rails 3, which are used to support the axle and assist the axle to rotate. An axle fixed rotation platform 5 is arranged on one side of this group of guide rails 3, which is used to clamp the axle and drive the axle to rotate. An inspection platform 6 is slidably arranged on the other group of guide rails 3, which is used to install the detection device;
[0024] The axle support platform 4 includes a second fixed seat 401. The second fixed seat 401 is slidably arranged on the guide rail 3. Second guide sleeves 402 are provided on the front and rear sides of the upper part of the second fixed seat 401. Second guide rods 403 are slidably arranged in the second guide sleeves 402. The upper ends of the two second guide rods 403 are fixedly connected to a second lifting platform 404. A second lifting component 405 is fixedly arranged on the upper surface of the second fixed seat 401. The output end of the second lifting component 405 is fixedly connected to the lower surface of the second lifting platform 404, which is used to drive the second lifting platform 404 to lift. Two side plates 406 are symmetrically arranged on the upper surface of the second lifting platform 404. Two support rollers 407 are rotatably installed between the two side plates 406. The two support rollers 407 are symmetrically arranged front and back.
[0025] The axle fixed rotating table 5 includes a first fixed seat 501, and the first fixed seat 501 is fixed on the installation platform 1. At the four corners of the upper part of the first fixed seat 501, first guide sleeves 502 are provided. First guide rods 503 are slidably arranged in the first guide sleeves 502. The upper ends of the four first guide rods 503 are fixedly connected to a first lifting platform 504. A first lifting assembly 505 is fixedly installed on the upper surface of the first fixed seat 501. The output end of the first lifting assembly 505 is connected to the lower surface of the first lifting platform 504 for driving the first lifting platform 504 to lift. An installation housing 506 is fixedly connected to the upper surface of the first lifting platform 504. A first rotating shaft 507 and a second rotating shaft 508 are rotatably installed in the installation housing 506. The first rotating shaft 507 and the second rotating shaft 508 are arranged perpendicular to each other. A worm 509 and a worm gear 510 are respectively installed on the first rotating shaft 507 and the second rotating shaft 508. One end of the first rotating shaft 507 extends out of the installation housing 506 and is connected to a runner 511. One end of the second rotating shaft 508 extends out of the installation housing 506 and is connected to a three-jaw chuck 512. The three-jaw chuck 512 is used for fixing the axle. An angle scale 513 is provided on the three-jaw chuck 512. An angle indicating line 514 is provided on the upper surface of the installation housing 506.
[0026] The detection table 6 includes a third fixed seat 601 which is slidably arranged on the guide rail 3. On the front and rear sides of the upper part of the third fixed seat 601, third guide sleeves 602 are provided. Inside the third guide sleeves 602, third guide rods 603 are slidably arranged. The upper ends of the two third guide rods 603 are fixedly connected to a third lifting table 604. On the upper surface of the third fixed seat 601, a third lifting assembly 605 is fixedly arranged. The output end of the third lifting assembly 605 is fixedly connected to the lower surface of the third lifting table 604 for driving the third lifting table 604 to lift. On the upper surface of the third lifting table 604, two fixing plates 606 are symmetrically and fixedly arranged in the front and rear. Between the two fixing plates 606, a guide post 607 and a lead screw 608 are arranged. The guide post 607 is fixedly connected to the fixing plate 606. The lead screw 608 is rotatably connected to the fixing plate 606. One end of the lead screw 608 passes through the fixing plate 606 and is connected to a turntable 609. Between the two fixing plates 606, a sliding table 610 is arranged. The sliding table 610 is slidably connected to the guide post 607 and is threadedly connected to the lead screw 608. The sliding table 610 is used for installing a detection device. On the upper surface of the third lifting table 604, a distance scale 611 is arranged for measuring the position of the sliding table 610. Threaded connection locking bolts 408 are arranged at the lower parts of the second fixed seat 401 and the third fixed seat 601 to facilitate the position fixing of the axle support table 4 and the detection table 6. A nylon block 409 is fixedly arranged at the lower end of the locking bolt 408 to prevent the locking bolt 408 from scratching the installation platform 1.
[0027] The first lifting assembly 505, the second lifting assembly 405 and the third lifting assembly 605 are all worm gear 510 and worm 509 lifting devices.
[0028] The above shows and describes the main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.
[0029] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only includes an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A residual stress detection platform for an axle, characterized in that: It includes an installation platform (1). A plurality of legs (2) are provided on the lower surface of the installation platform (1). Two sets of guide rails (3) are provided on the upper surface of the installation platform (1). Two axle support platforms (4) are slidably arranged on one set of guide rails (3) for supporting the axle and assisting the axle to rotate. An axle fixing and rotating platform (5) is arranged on one side of this set of guide rails (3) for clamping the axle and driving the axle to rotate. A detection platform (6) is slidably arranged on the other set of guide rails (3) for installing a detection device; The axle fixing and rotating platform (5) includes a first fixing base (501). The first fixing base (501) is fixed on the installation platform (1). Four first guide sleeves (502) are provided at the four corners of the upper part of the first fixing base (501). A first guide rod (503) is slidably arranged in the first guide sleeve (502). The upper ends of the four first guide rods (503) are fixedly connected to a first lifting platform (504). A first lifting assembly (505) is fixedly installed on the upper surface of the first fixing base (501). The output end of the first lifting assembly (505) is connected to the lower surface of the first lifting platform (504) for driving the first lifting platform (504) to lift. An installation housing (506) is fixedly connected to the upper surface of the first lifting platform (504). A first rotating shaft (507) and a second rotating shaft (508) are rotatably installed in the installation housing (506). The first rotating shaft (507) and the second rotating shaft (508) are arranged perpendicular to each other. A worm (509) and a worm gear (510) are respectively installed on the first rotating shaft (507) and the second rotating shaft (508). One end of the first rotating shaft (507) extends out of the installation housing (506) and is connected to a runner (511). One end of the second rotating shaft (508) extends out of the installation housing (506) and is connected to a three-jaw chuck (512). The three-jaw chuck (512) is used for fixing the axle. An angle scale (513) is provided on the three-jaw chuck (512). An angle indicating line (514) is provided on the upper surface of the installation housing (506).
2. The axle residual stress detection platform according to claim 1, characterized in that: The axle support platform (4) includes a second fixed seat (401). The second fixed seat (401) is slidably arranged on the guide rail (3). On the front and rear sides of the upper part of the second fixed seat (401), second guide sleeves (402) are arranged. A second guide rod (403) is slidably arranged in the second guide sleeve (402). The upper ends of the two second guide rods (403) are fixedly connected to a second lifting platform (404). On the upper surface of the second fixed seat (401), a second lifting assembly (405) is fixedly arranged. The output end of the second lifting assembly (405) is fixedly connected to the lower surface of the second lifting platform (404) for driving the second lifting platform (404) to lift. On the upper surface of the second lifting platform (404), two side plates (406) are symmetrically arranged left and right. Two support rollers (407) are rotatably installed between the two side plates (406). The two support rollers (407) are symmetrically arranged front and back.
3. The residual stress detection platform for an axle according to claim 2, characterized in that: The inspection platform (6) includes a third fixed seat (601). The third fixed seat (601) is slidably arranged on the guide rail (3). On the front and rear sides of the upper part of the third fixed seat (601), third guide sleeves (602) are arranged. A third guide rod (603) is slidably arranged in the third guide sleeve (602). The upper ends of the two third guide rods (603) are fixedly connected to a third lifting platform (604). On the upper surface of the third fixed seat (601), a third lifting assembly (605) is fixedly arranged. The output end of the third lifting assembly (605) is fixedly connected to the lower surface of the third lifting platform (604) for driving the third lifting platform (604) to lift. On the upper surface of the third lifting platform (604), two fixing plates (606) are symmetrically fixed front and back. A guide post (607) and a lead screw (608) are arranged between the two fixing plates (606). The guide post (607) is fixedly connected to the fixing plate (606). The lead screw (608) is rotatably connected to the fixing plate (606). One end of the lead screw (608) passes through the fixing plate (606) and is connected to a turntable (609). A sliding table (610) is arranged between the two fixing plates (606). The sliding table (610) is slidably connected to the guide post (607) and threadedly connected to the lead screw (608). The sliding table (610) is used to install the inspection device.
4. The axle residual stress detection platform according to claim 3, characterized in that: On the upper surface of the third lifting platform (604), a distance scale (611) is arranged for measuring the position of the sliding table (610).
5. The residual stress detection platform for an axle according to claim 3, characterized in that: Locking bolts (408) are threadedly connected to the lower parts of the second fixed seat (401) and the third fixed seat (601) respectively, so as to facilitate the fixing of the positions of the axle support platform (4) and the inspection platform (6).
6. The axle residual stress detection platform according to claim 5, characterized in that: A nylon block (409) is fixedly arranged at the lower end of the locking bolt (408) to prevent the locking bolt (408) from scratching the installation platform (1).
7. A residual stress detection platform for an axle according to claim 3, characterized in that: The first lifting component (505), the second lifting component (405), and the third lifting component (605) are all worm (510) and worm gear (509) lifting devices.
8. The residual stress detection platform for an axle according to claim 1, characterized in that: A universal wheel (7) is provided at the lower end of the support leg (2) to facilitate the movement of the detection platform.