Tool for detecting elastic bearing body of passenger train

Abstract

The invention provides a railway carriage elastic bearing body detection tool, and belongs to the technical field of bearing body detection tools. Comprising a clamping mechanism, a supporting frame body is installed on the top of the clamping mechanism, a first frame body is arranged on one side of the clamping mechanism, a second frame body is arranged at the bottom of the clamping mechanism, side bearing boxes are installed on the two sides of the top of the first frame body, and side bearing bodies are installed on the tops of the side bearing boxes; and the first outer contour measuring mechanism is used for measuring the length and the width of the side bearing box. Through the arrangement of the first outer contour measuring mechanism and the second outer contour measuring mechanism, the length and width of the outer contour of the side bearing box and the arc length and curvature of the corners of the outer contour can be rapidly measured by using the first outer contour measuring mechanism; and the length and the width of the outer contour of the side bearing body and the arc length and the curvature at the corners of the side bearing body are rapidly measured by using the second outer contour measuring mechanism.

Description

Technical Field

[0001] This invention relates to the field of bearing testing fixtures, and in particular to a testing fixture for elastic bearings of railway passenger cars. Background Technology

[0002] Side bearings are located between the vehicle body and the running gear. There are two main types: clearance side bearings and elastic side bearings. Elastic side bearings are more common. Elastic side bearings are usually composed of a side bearing seat, an elastomer, and a wear plate. They can achieve an elastic connection between the vehicle body and the bogie through their own elastic deformation, such as shearing and compression deformation. This can effectively suppress the serpentine movement of the bogie and improve the smoothness and stability of vehicle operation.

[0003] As a key component connecting the car body and bogie, the assembly accuracy of the side bearing device not only affects its own stable operation but also plays a decisive role in the overall performance of the railway passenger car. Therefore, before installation, it is necessary to measure the outer contour dimensions of the side bearing base and the outer contour dimensions of the side bearing box on the frame. Precise dimensional matching can avoid abnormal wear or uneven stress on the side bearing device during operation, reducing potential safety hazards. Currently, the dimensional inspection of the elastic side bearing of domestic railway passenger cars is still mainly done manually. The inspection process relies on traditional measuring tools such as vernier calipers, depth gauges, and feeler gauges. However, due to the large weight of the side bearing itself, the manual inspection mode requires repeated adjustments to its placement to find the best measurement angle and measuring point, which significantly increases the labor intensity of the inspectors. Furthermore, the process of repeatedly adjusting the position and recording multiple readings is time-consuming, especially during peak maintenance periods when multiple cars need to be processed simultaneously. The low efficiency of manual inspection is even more prominent, which not only affects the overall production or maintenance progress but may also increase the risk of reading errors due to operator fatigue, potentially affecting the inspection accuracy. Therefore, this application provides a tooling for inspecting the elastic bearing of railway passenger cars to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a testing fixture for the elastic bearing of a railway passenger car. By setting up a first outer contour measuring mechanism and a second outer contour measuring mechanism, the first contour measuring mechanism can quickly measure the length and width of the outer contour of the side bearing box, as well as the arc length and curvature at the corners of the outer contour. The second outer contour measuring mechanism can quickly measure the length and width of the outer contour of the side bearing body, as well as the arc length and curvature at its corners. The above settings can solve the problem that the existing manual measurement operation using tools such as rulers is cumbersome and has low work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A testing fixture for the elastic bearing of a railway passenger car includes a clamping mechanism, a support frame mounted on the top of the clamping mechanism, a first frame on one side of the clamping mechanism, and a second frame at the bottom of the clamping mechanism. Side bearing boxes are mounted on both sides of the top of the first frame, and a side bearing body is mounted on the top of each side bearing box. A first outer contour measuring mechanism is used to measure the length and width of the side bearing box and is connected to the support frame. A second outer contour measuring mechanism is used to measure the length and width of the side bearing body and is also connected to the support frame.

[0006] Optionally, the first outer contour measuring mechanism includes a first measuring frame installed at the bottom of the support frame, and a second measuring frame fixedly connected to the bottom of the first measuring frame. There are four first measuring frames, and two first measuring frames are arranged as a group on the same side of the support frame. There are four second measuring frames, and each second measuring frame is installed on one of the first measuring frames. The four second measuring frames are respectively located at the four corners of the side support box.

[0007] Optionally, the distance between the two sets of first measuring frames is the same as the length of the side support box, and the distance between the inner walls of the two second measuring frames located on the same side of the support frame is the same as the width of the side support box.

[0008] Optionally, the bottom of the first measuring frame is provided with a second guide portion, and the first measuring frame and the second measuring frame are integrally formed.

[0009] Optionally, the second measuring frame is an arc-shaped structure that protrudes away from the center of the side bearing box. The shape of the second measuring frame is adapted to the outline shape of the side bearing box, and a first lightweight groove is provided on the second measuring frame.

[0010] Optionally, the second outer contour measuring mechanism includes connecting blocks mounted on the support frame. The connecting blocks are arranged opposite each other on both sides of the support frame, and a third measuring frame is fixedly connected to both sides of the connecting blocks.

[0011] Optionally, a first measuring block is installed on one of the connecting blocks near the center of the side bearing box, and a second measuring block is installed on the other connecting block near the center of the side bearing box.

[0012] Optionally, the top of the connecting block is inclined, the shape of the first measuring block is adapted to the shape of a groove on the side bearing body, and the shape of the second measuring block is adapted to the shape of another groove on the side bearing body.

[0013] Optionally, the shape of the third measuring frame is adapted to the outline shape of the side support body, and the third measuring frame is provided with a second lightweight groove.

[0014] Optionally, a guide block is fixedly connected to the top of the third measuring frame on the side away from the connecting block, the guide block has a third lightweight groove, and the guide block has a first guide portion.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up a first outer contour measuring mechanism and a second outer contour measuring mechanism, the first contour measuring mechanism can quickly measure the length and width of the outer contour of the side bearing box, as well as the arc length and curvature at the corners of the outer contour. The second outer contour measuring mechanism can quickly measure the length and width of the outer contour of the side bearing body, as well as the arc length and curvature at its corners. It also assists in aligning the side bearing box and the side bearing body, facilitating the rapid installation of the side bearing body into the side bearing box after measurement. This device measures a single model of side bearing box and side bearing body. Through rapid measurement, it saves manual labor time, improves work efficiency, and ensures accurate measurement, guaranteeing the quality of the side bearing box and side bearing body, thereby ensuring safety during railway passenger car operation. It also ensures that the side bearing body can be accurately and stably installed in the side bearing box, further guaranteeing the safety of railway passenger car operation.

[0016] By incorporating a first measuring frame and a second measuring frame within the first outer contour measuring mechanism, the length of the side bearing box can be measured using the distance between the first measuring frames. The arc length and curvature of the side bearing box corners can be measured using the arc length and curvature of the second measuring frame to ensure they meet the standards. Furthermore, the width of the side bearing box can be measured using the distance between the extended sides of the two second measuring frames to ensure it meets the standards. This allows for the rapid measurement of the outer contour dimensions of the side bearing box, ensuring that it can be quickly and stably installed and used, and thus guaranteeing that the outer contour dimensions of the railway passenger car side bearing box meet the standards.

[0017] By incorporating a connecting block, a third measuring frame, and a guide block within the second outer contour measuring mechanism, the length of the side bearing body can be measured to ensure it conforms to the standard using the distance between the two connecting blocks. The curvature and arc length of the four corners of the side bearing body can be measured using the curvature and arc length of the third measuring frame. Furthermore, the distance between two adjacent guide blocks is equal to the width of the side bearing body, allowing for the measurement of the width of the side bearing body to ensure it conforms to the standard. This rapid measurement of the outer contour dimensions of the side bearing body ensures its quick and stable installation and use, thereby guaranteeing that the outer contour dimensions of the railway passenger car side bearing body strictly conform to the standard.

[0018] By incorporating a first measuring block and a second measuring block within the second outer contour measuring mechanism, the widths of the two slots on the side bearing body can be measured to ensure they conform to the standard. This further guarantees the quality of the side bearing body and ensures that the shape of the side bearing body matches that of the side bearing box. The slots on the side bearing body are specially designed structures based on their functional positioning. The function of different slots is directly related to the assembly logic, load transfer, and component adaptation of the side bearing. Measuring the slot width again before installation ensures that the slot function is effectively realized and avoids assembly hazards.

[0019] By providing a first guide section within the second outer contour measuring mechanism, the side bearing body can be positioned more quickly and accurately using the guidance of the first guide section. In conjunction with the connecting block and the third measuring frame, the side bearing body is limited, aligning the center position of the side bearing body with the center position of the side bearing box. This facilitates the measurement of the outer contour dimensions of the side bearing body and makes it easier to install the side bearing body into the side bearing box for subsequent use.

[0020] In summary, this device can not only accurately and efficiently measure the outer contours of the side bearing box and the side bearing body, but also assist in the positioning of the side bearing body to improve the convenience of measurement and installation. The coordinated use of the structures in the device ensures the compatibility of railway passenger car parts, thereby achieving stable installation and ultimately ensuring that the compatibility between railway passenger car parts meets the standards. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0022] Figure 1 A first-person perspective three-dimensional structural diagram of the testing fixture for the elastic bearing of a railway passenger car under actual use. Figure 2 A second-view three-dimensional structural diagram of the testing fixture for the elastic bearing of a railway passenger car under actual use. Figure 3 A third-view 3D structural diagram of the testing fixture for the elastic bearing of a railway passenger car under actual use. Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A schematic diagram of the three-dimensional structure of a testing fixture for the elastic bearing of a railway passenger car. Figure 6 for Figure 5 Enlarged structural diagram at point B; Figure 7 A first-view structural diagram of the testing fixture for the elastic bearing of a railway passenger car. Figure 8A schematic diagram of the second-view structure of the testing fixture for the elastic bearing of a railway passenger car. Figure 9 A schematic diagram of the third-view structure of a testing fixture for the elastic bearing of a railway passenger car. Figure 10 A magnified three-dimensional structural diagram of the first and second measuring frames in conjunction; Figure 11 A magnified three-dimensional structural diagram illustrating the connection between the connecting block and the third measuring frame; Figure 12 A magnified three-dimensional structural diagram showing the connection block and the first measuring block in action; Figure 13 for Figure 2 Enlarged structural diagram at point C.

[0023] Figure label: 1. Clamping mechanism; 2. Support frame; 3. First frame; 4. Second frame; 5. Side support box; 6. Side support body; 7. First measuring frame; 8. Second measuring frame; 9. Connecting block; 10. First measuring block; 11. Second measuring block; 12. Third measuring frame; 13. Guide block; 14. First guide part; 15. Second guide part; 16. First lightweight groove; 17. Second lightweight groove; 18. Third lightweight groove.

[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0025] The following is a detailed description of a railway passenger car elastic bearing testing fixture provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0026] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0027] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0028] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0029] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0030] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a testing fixture for the elastic bearing of a railway passenger car, including a clamping mechanism 1, a support frame 2 mounted on the top of the clamping mechanism 1, a first frame 3 on one side of the clamping mechanism 1, a second frame 4 at the bottom of the clamping mechanism 1, side bearing boxes 5 mounted on both sides of the top of the first frame 3, and a side bearing body 6 mounted on the top of the side bearing box 5; a first outer contour measuring mechanism for measuring the length and width of the side bearing box 5, and connected to the support frame 2; and a second outer contour measuring mechanism for measuring the length and width of the side bearing body 6, also connected to the support frame 2. The clamping mechanism 1 is a mature existing technology, and its working principle and specific structure will not be described in detail here. The clamping mechanism 1 is used to mount and fix the testing device on the second frame 4. This system facilitates the measurement of the side bearing box 5 and the side bearing body 6. The first contour measuring mechanism quickly measures the length and width of the outer contour of the side bearing box 5, as well as the arc length and curvature at its corners. The second outer contour measuring mechanism quickly measures the length and width of the outer contour of the side bearing body 6, as well as the arc length and curvature at its corners. This also helps align the side bearing box 5 and the side bearing body 6, allowing for quick installation of the side bearing body 6 into the side bearing box 5 after measurement. This rapid measurement saves manual labor time, improves work efficiency, and ensures accurate measurement, guaranteeing the quality of the side bearing box 5 and the side bearing body 6. This, in turn, ensures the safety of railway passenger cars during operation and guarantees that the side bearing body 6 can be accurately and stably installed in the side bearing box 5, further ensuring the safety of railway passenger cars during operation.

[0031] like Figures 2 to 5 , Figures 7 to 10 and Figure 13As shown, the first outer contour measuring mechanism includes a first measuring frame 7 installed at the bottom of the support frame 2. A second measuring frame 8 is fixedly connected to the bottom of the first measuring frame 7. There are four first measuring frames 7, with two first measuring frames 7 arranged as a group on the same side of the support frame 2. There are four second measuring frames 8, each second measuring frame 8 corresponding to one first measuring frame 7. The four second measuring frames 8 are located at the four corners of the side support box 5. Each second measuring frame 8 has an extended side on both sides, with an included angle of 90 degrees between the two extended sides. By placing two groups of first measuring frames 7 on both sides of the side support box 5 and moving the first measuring frames 7 from the top to the bottom of the side support box 5, the first measuring... The frame 7 is placed close to and tightly against the inner wall of the side bearing box 5. Two sets of first measuring frames 7 are used to clamp the side bearing box 5. The distance between the two first measuring frames 7 is the length of the side bearing box 5. Four second measuring frames 8 are placed at the four corners of the side bearing box 5. The second measuring frames 8 are used to measure whether the arc length and curvature at the corners of the side bearing box 5 are standard. The distance between the extended sides of the two second measuring frames 8 is used to measure whether the width of the side bearing box 5 meets the standard. In this way, the outer contour dimensions of the side bearing box 5 can be quickly measured by the cooperation of the first measuring frames 7 and the second measuring frames 8, so as to ensure that the side bearing body 6 can be quickly and stably installed inside it for use, thereby ensuring the safety of the railway passenger car during operation.

[0032] Furthermore, the spacing between the two sets of first measuring frames 7 is the same as the length of the side bearing box 5, facilitating quick calibration of the length of the side bearing box 5. The spacing between the inner walls of the two second measuring frames 8 located on the same side of the support frame 2, i.e., the distance between the extended sides of the second measuring frames 8, is the same as the width of the side bearing box 5, facilitating quick calibration of the width of the side bearing box 5. The bottom of the first measuring frame 7 is provided with a second guide part 15, which facilitates the quick positioning of the first measuring frame 7 to both sides of the side bearing box 5 and alignment with the edge of the side bearing box 5 using the guidance of the second guide part 15. The first measuring frame 7 and the second measuring frame 8 are integrally formed, which has better stability and facilitates production and use. The second measuring frame 8 is an arc-shaped structure that protrudes away from the center of the side bearing box 5. The shape of the second measuring frame 8 is adapted to the outline shape of the side bearing box 5, which facilitates quick measurement of whether the dimensions of each corner of the side bearing box 5 are standard. The second measuring frame 8 is provided with a first lightweight groove 16, which reduces the weight of the first lightweight groove 16.

[0033] like Figures 3 to 9 and Figures 10 to 13As shown, the second outer contour measuring mechanism includes connecting blocks 9 mounted on the support frame 2. Two connecting blocks 9 are arranged opposite each other on both sides of the support frame 2. Third measuring frames 12 are fixedly connected to both sides of each connecting block 9. A guide block 13 is fixedly connected to the top of the third measuring frame 12 on the side away from the connecting block 9. A first measuring block 10 is mounted on one connecting block 9 near the center of the side support box 5, and a second measuring block 11 is mounted on the other connecting block 9 near the center of the side support box 5. The connecting block 9, the two third measuring frames 12, and the two guide blocks 13 on the same side of the support frame 2 are integrally formed. The stability is good. The first measuring block 10 is rotatably connected to a connecting block 9, and the second measuring block 11 is rotatably connected to another connecting block 9, which facilitates production and use. After accurately positioning the first measuring frame 7 and the second measuring frame 8, the clamping mechanism 1 is fixed to the second frame 4. Then, the side bearing body 6 is placed between the two connecting blocks 9, and the side bearing body 6 is lowered from top to bottom between the two connecting blocks 9. The first measuring block 10 and the second measuring block 11 are rotated along the edge of the connecting block 9 to the top of the connecting block 9, providing clearance for the lowering movement of the side bearing body 6 and avoiding interference between the two. The distance between connecting blocks 9 is used to measure whether the length of the side bearing body 6 meets the standard. Four third measuring frames 12 are placed at the four corners of the side bearing body 6, and the curvature and arc length of the four corners of the side bearing body 6 are measured using the third measuring frames 12. The distance between two adjacent guide blocks 13 is equal to the width of the side bearing body 6, and the distance between the two guide blocks 13 is used to measure whether the width of the side bearing body 6 meets the standard. Furthermore, when aligning the first measuring block 10 and the second measuring block 11 with the grooves on both sides of the side bearing body 6, the first measuring block 10 and the second measuring block 11 are rotated in opposite directions along the edge of the connecting block 9, so that the first measuring block 10 and the second measuring block 11 respectively... The two grooves on the side bearing body 6 are fitted into the first measuring block 10 and the second measuring block 11, which are used to measure whether the width of the two grooves on the side bearing body 6 meets the standard. By using the cooperation between the above structures, the outer contour dimensions of the side bearing body 6 and the groove width on the side bearing body 6 are quickly measured, which further ensures the quality of the side bearing body 6 and ensures that the shape of the side bearing body 6 matches that of the side bearing box 5. Furthermore, by using the above structures to limit and guide the side bearing body 6, the side bearing body 6 can be quickly and accurately installed in the side bearing body 6, which not only improves the detection efficiency but also ensures the safety of the device during use.

[0034] Furthermore, the top of the connecting block 9 is inclined to guide the placement of the side bearing body 6 between the two connecting blocks 9, allowing the side bearing body 6 to be quickly positioned between the two connecting blocks 9 and to fit snugly against the edges of the connecting blocks 9. The shape of the first measuring block 10 matches the shape of a groove on the side bearing body 6, facilitating the measurement of the width of the groove on the side bearing body 6. The shape of the second measuring block 11 matches the shape of another groove on the side bearing body 6, facilitating the measurement of the width of the groove on the side bearing body 6. The slots on the side bearing body 6 are special structures designed according to their functional positioning. The function of different slots is directly related to the assembly logic, load transfer, and component adaptation of the side bearing. Measuring the slot width again before installation ensures the functionality of the slots. To effectively achieve and avoid assembly hazards, the shape of the third measuring frame 12 is adapted to the contour shape of the side bearing body 6, which facilitates quick and accurate measurement of the arc length and curvature of the edge of the side bearing body 6. The third measuring frame 12 is provided with a second lightweight groove 17 to reduce the weight of the third measuring frame 12. The guide block 13 is provided with a third lightweight groove 18 to reduce the weight of the guide block 13. The guide block 13 is provided with a first guide part 14. With the guidance of the first guide part 14, the side bearing body 6 can be positioned more quickly and accurately, so that the center position of the side bearing body 6 is aligned with the center position of the side bearing box 5, which facilitates the measurement of the outer contour dimensions of the side bearing body 6 and makes it easier to install the side bearing body 6 into the side bearing box 5 for use.

[0035] The working principle of the technical solution provided by this invention is as follows: In use, the inner contour dimensions of the side bearing box 5 are measured first. Two sets of first measuring frames 7 are placed on either side of the side bearing box 5. The first measuring frames 7 are slowly moved from the top to the bottom of the side bearing box 5 until they are completely close to and pressed against the inner wall of the side bearing box 5. At this point, the two sets of first measuring frames 7 form a stable clamp on the side bearing box 5, and the distance between the two first measuring frames 7 is exactly equal to the inner length of the side bearing box 5. Whether the outer wall of the first measuring frame 7 and the outer wall of the side bearing box 5 are completely in contact can be used to determine whether the length of the side bearing box 5 meets the standard. Then, four second measuring frames 8 are placed at the four corners of the side bearing box 5, and the third measuring frame 12 is observed to be completely in contact with the outer wall of the side bearing box 5, thus allowing for direct measurement. The arc length and curvature of the corners of the side bearing box 5 are used to verify whether the corner shape is standard. Its extended side can also form a positioning reference. The distance between the extended sides of two adjacent second measuring frames 8 is the inner width of the side bearing box 5. This distance can be used to further confirm whether the width of the side bearing box 5 meets the subsequent installation requirements, so as to complete the detection of the key dimensions of the inner contour of the side bearing box 5 and ensure that its internal space is suitable for the installation of the side bearing body 6. Then, the clamping mechanism 1 is fixed on the second frame 4 to ensure the stability of the overall structure. Then, the side bearing body 6 is placed between the two connecting blocks 9 for lowering. Since the top of the connecting block 9 is designed to be inclined, this inclined structure can provide guidance for the lowering of the side bearing body 6, so that the side bearing body 6 automatically aligns along the inclined surface and falls quickly. Between the two connecting blocks 9, the edges of the connecting blocks 9 are finally pressed together. At this point, the distance between the two connecting blocks 9 is equal to the outer length of the side bearing body 6, which can directly determine whether the length of the side bearing body 6 is compliant. Then, the four third measuring frames 12 are respectively aligned with the four corners of the side bearing body 6. The curvature and arc length of the corners of the side bearing body 6 are measured by pressing the third measuring frames 12 against the side bearing body 6 to verify whether the corner shape is standard. At the same time, the distance between two adjacent guide blocks 13 is equal to the width of the side bearing body 6. This distance can be used to check whether the width of the side bearing body 6 meets the requirements. When measuring the groove width of the side bearing body 6, the first measuring block 10 and the second measuring block 11 are first rotated along the edge of the connecting block 9 to the top of the connecting block 9, which is the side bearing body 6. The device is positioned to provide clearance and avoid interference. After the side bearing body 6 is in place and the first measuring block 10 and the second measuring block 11 are aligned with the grooves on both sides of the side bearing body 6, the first measuring block 10 and the second measuring block 11 are rotated in opposite directions along the edge of the connecting block 9 so that they are respectively locked in the two grooves of the side bearing body 6. By measuring the fit between the first measuring block 10 and the groove, and between the second measuring block 11 and the groove, it can be determined whether the width of the two grooves on the side bearing body 6 meets the standard. Finally, after completing the size inspection of the side bearing box 5 and the side bearing body 6 and confirming that their shapes are compatible, the side bearing body 6 can be quickly and accurately installed into the side bearing box 5 with the help of the limiting and guiding of the previous components. The structure of this device is simple and convenient for testing and use.

[0036] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A testing fixture for the elastic support structure of a railway passenger car, comprising a clamping mechanism, characterized in that, The clamping mechanism is equipped with a support frame on its top, a first frame on one side of the clamping mechanism, and a second frame at the bottom of the clamping mechanism. Side support boxes are installed on both sides of the top of the first frame, and a side support body is installed on the top of the side support box. The first outer contour measuring mechanism is used to measure the length and width of the side support box, and the first outer contour measuring mechanism is connected to the support frame. The second outer contour measuring mechanism is used to measure the length and width of the side bearing body, and the second outer contour measuring mechanism is connected to the support frame.

2. The testing fixture for the elastic bearing of railway passenger cars according to claim 1, characterized in that, The first outer contour measuring mechanism includes a first measuring frame installed at the bottom of the support frame, and a second measuring frame fixedly connected to the bottom of the first measuring frame. There are four first measuring frames, and two first measuring frames are arranged as a group on the same side of the support frame. There are four second measuring frames, and each second measuring frame is installed on one of the first measuring frames. The four second measuring frames are located at the four corners of the side support box.

3. The testing fixture for the elastic bearing of railway passenger cars according to claim 2, characterized in that, The distance between the two sets of first measuring frames is the same as the length of the side support box, and the distance between the inner walls of the two second measuring frames located on the same side of the support frame is the same as the width of the side support box.

4. The testing fixture for the elastic bearing of railway passenger cars according to claim 2, characterized in that, The bottom of the first measuring frame is provided with a second guide section, and the first measuring frame and the second measuring frame are integrally formed.

5. The testing fixture for the elastic bearing of railway passenger cars according to claim 2, characterized in that, The second measuring frame is an arc-shaped structure that protrudes away from the center of the side bearing box. The shape of the second measuring frame is adapted to the outline shape of the side bearing box. A first lightweight groove is provided on the second measuring frame.

6. The testing fixture for the elastic bearing of railway passenger cars according to claim 1, characterized in that, The second outer contour measuring mechanism includes connecting blocks mounted on the support frame. The connecting blocks are arranged opposite each other on both sides of the support frame, and a third measuring frame is fixedly connected to both sides of the connecting blocks.

7. The testing fixture for the elastic bearing of railway passenger cars according to claim 6, characterized in that, One of the connecting blocks is equipped with a first measuring block near the center of the side bearing box, and the other connecting block is equipped with a second measuring block near the center of the side bearing box.

8. The testing fixture for the elastic bearing of railway passenger cars according to claim 7, characterized in that, The top of the connecting block is inclined, the shape of the first measuring block is adapted to the shape of a groove on the side bearing body, and the shape of the second measuring block is adapted to the shape of another groove on the side bearing body.

9. The testing fixture for the elastic bearing of railway passenger cars according to claim 6, characterized in that, The shape of the third measuring frame is adapted to the outline shape of the side support body, and the third measuring frame is provided with a second lightweight groove.

10. The testing fixture for the elastic bearing of a railway passenger car according to claim 6, characterized in that, The top of the third measuring frame, away from the connecting block, is fixedly connected to a guide block. The guide block has a third lightweight groove and a first guide portion.

Images