Automobile axle load detection bench

Abstract

The utility model discloses an automobile axle load detection bench, comprising a work bench, the lower surface of the work bench is provided with a support frame, the lower surface of the support frame is fixedly connected with a bottom plate, and the lower surface of the bottom plate is fixedly connected with universal wheels; a two-way threaded rod A is movably connected into the workbench through a shaft seat, the two ends of the two-way threaded rod A are provided with a right-hand thread and a left-hand thread respectively, and one end of the two-way threaded rod A penetrates through the workbench and is fixedly connected with a crank. According to the automobile axle load detection platform, the two first fixing mechanisms can be close to each other through the two-way threaded rod A, and the two sides of an automobile axle are clamped; the two-way threaded rod B enables the fixing side plates to be close to each other, and the other two sides of the automobile shaft are fixed. The multidirectional fixing mode greatly improves the stability of the automobile shaft in the detection process, reduces the detection error caused by the shaking or displacement of the automobile shaft, and improves the accuracy of the detection result.

Description

Technical Field

[0001] This utility model relates to the field of automobile axle load testing, specifically an automobile axle load testing platform. Background Technology

[0002] In the field of automotive axle load testing, existing testing benches may have the following problems:

[0003] Insecure Fixation: Some traditional vehicle axle load testing benches may only use simple clamping methods to fix the vehicle axle, making it difficult to comprehensively and securely fix multiple sides of the axle. During the testing process, the vehicle axle is prone to shaking or displacement, thus affecting the accuracy of the test results.

[0004] Inconvenient fixing and storage of testing equipment: Some testing stations do not have flexible and reliable fixing methods for testing equipment (such as ultrasonic non-destructive testing equipment), which may cause the testing equipment to shake during use and affect the testing results. Moreover, after the testing is completed, the testing equipment is not easy to store, which may take up a lot of space and is not conducive to the overall management and storage of the testing station.

[0005] Poor mobility and operational flexibility: Some testing stations may lack convenient mobility mechanisms, making it difficult to quickly adjust their position in different testing scenarios. Furthermore, their operation procedures may be cumbersome, requiring significant manpower and time. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an automobile axle load testing platform, which solves the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: an automobile axle load testing platform, including a workbench, a support frame installed on the lower surface of the workbench, a base plate fixedly connected to the lower surface of the support frame, and casters fixedly connected to the lower surface of the base plate;

[0010] The workbench is movably connected to a bidirectional threaded rod A via a bearing seat. The two ends of the bidirectional threaded rod A are respectively provided with a positive thread and a negative thread. One end of the rod passes through the workbench and is fixedly connected to a crank. The surfaces of the positive thread and the negative thread are threadedly connected to a first fixing mechanism.

[0011] The first fixing mechanism includes a fixing plate, which is threaded to both ends of a bidirectional threaded rod A. Fixing blocks are fixedly connected to both sides of the upper surface of the fixing plate. One of the fixing blocks is movably connected to a bidirectional threaded rod B through a shaft seat. Fixing side plates are threaded to both ends of the bidirectional threaded rod B. The fixing side plates are movably connected to the surface of the fixing plate through a sliding groove.

[0012] Stabilizing mechanisms are fixedly connected to both sides of the upper surface of the workbench. Each stabilizing mechanism includes a stabilizing rod, with stabilizing blocks fixedly connected to both ends of the stabilizing rod. The stabilizing blocks are fixed to the surface of the workbench, and the stabilizing rod is slidably inserted into the inside of the fixed plate.

[0013] The workbench is internally connected to a movable rod via a sliding groove. The movable rod is fixedly connected to a bearing mechanism. The bearing mechanism includes a bearing plate. The upper surface of the bearing plate is threaded with a second fixing mechanism on both sides. The surface of the workbench is threaded with positioning bolts for fixing the movable rod.

[0014] Optionally, one end of the bidirectional threaded rod B of the first fixing mechanism passes through the fixing block and is connected to a crank handle, and both ends of the bidirectional threaded rod B are provided with reverse threads, and the surface of the fixing side plate is provided with an anti-slip pad layer.

[0015] Optionally, the stabilizing rod and the stabilizing block in the stabilizing mechanism form a sliding guide structure, and the axis of the stabilizing rod is arranged parallel to the axis of the bidirectional threaded rod A.

[0016] Optionally, the upper surface of the bearing plate of the bearing mechanism is provided with a bearing groove, and the second fixing mechanism includes a lead screw, one end of which is movably connected to a clamping plate through a shaft seat, and the other end is fixedly connected to a knob. The clamping plate cooperates with the bearing groove to clamp the detection device.

[0017] Optionally, the anti-slip pad layer of the fixed side plate is made of rubber with a thickness of 3-5mm and has staggered raised textures on the surface.

[0018] Optionally, the bottom surface of the bearing groove is provided with an elastic buffer layer, which is made of polyurethane foam material with a thickness of 8-12mm and is bonded and fixed to the bearing plate.

[0019] Optionally, the upper surface of the fixing plate is provided with an arc-shaped positioning groove that is aligned with the axis of the vehicle axle. The curvature of the arc-shaped positioning groove matches the outer diameter of the vehicle axle, and the anti-slip pad layer is attached to the inner surface of the groove.

[0020] Optionally, the arc-shaped positioning groove is a detachable structure, including at least two replacement grooves with different radii of curvature, and the replacement grooves are detachably connected to the fixing plate by bolts.

[0021] (III) Beneficial Effects

[0022] This utility model provides an automobile axle load testing platform, which has the following advantages:

[0023] Good fixation effect:

[0024] The design of the bidirectional threaded rods A3 and B403 allows for fixation from multiple sides of the vehicle axle. The bidirectional threaded rod A3 brings the two first fixing mechanisms 4 closer together, clamping both sides of the vehicle axle; the bidirectional threaded rod B403 brings the fixing side plates 404 closer together, fixing the other two sides of the vehicle axle. This multi-directional fixing method significantly improves the stability of the vehicle axle during inspection, reduces inspection errors caused by axle wobbling or displacement, and improves the accuracy of the inspection results.

[0025] The anti-slip pad layer on the surface of the fixed side plate 404 further increases the friction with the contact surface of the vehicle axle, enhances the fixing effect, and ensures that the vehicle axle remains stationary during the inspection process.

[0026] The detection device is easy to fix and store.

[0027] The second fixing mechanism 10 on the support plate 9 can easily fix the testing device through the cooperation of the lead screw 1001 and the clamping plate 1002. By rotating the knob, the clamping plates 1002 can be moved closer or further apart, so as to effectively fix the testing devices of different sizes and ensure the stability of the testing device during use.

[0028] The design of the movable rod 6 and the positioning bolt 5 allows the support plate 9 to rotate and be fixed flexibly. After the test is completed, the support plate 9 can be rotated under the worktable 1 for storage, saving space and facilitating the overall management and storage of the test table.

[0029] Flexible and convenient to operate:

[0030] The casters at the bottom of the testing station facilitate the movement and position adjustment of the entire testing station, enabling it to quickly adapt to different testing scenarios and improve the efficiency of the testing work.

[0031] All components are operated via cranks, knobs, etc., making them simple and easy to understand, thus reducing the labor intensity and technical requirements for operators. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the second embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the first fixing mechanism of this utility model;

[0035] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0036] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0037] Figure 6 This utility model Figure 1 Enlarged structural diagram at point B.

[0038] In the diagram: 1. Workbench; 2. Support frame; 3. Bidirectional threaded rod A; 4. First fixing mechanism; 401. Fixing plate; 402. Fixing block; 403. Bidirectional threaded rod B; 404. Fixing side plate; 5. Positioning bolt; 6. Movable rod; 7. Stabilizing rod; 8. Stabilizing block; 9. Bearing plate; 10. Second fixing mechanism; 1001. Lead screw; 1002. Clamping plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0040] Please see Figures 1 to 6 This utility model provides a technical solution:

[0041] Overall Structure Overview

[0042] An automobile axle load testing platform mainly includes a workbench 1, a support frame 2, a base plate, casters, a bidirectional threaded rod A3, a first fixing mechanism 4, positioning bolts 5, a movable rod 6, a stabilizing mechanism, a load-bearing mechanism, and a second fixing mechanism 10.

[0043] Detailed structure and connection relationship of each component

[0044] Support and moving components: A support frame 2 is mounted on the lower surface of the worktable 1. A base plate is fixedly connected to the lower surface of the support frame 2, and casters are fixedly connected to the lower surface of the base plate. The casters facilitate the movement and position adjustment of the entire testing table to adapt to different testing scenarios.

[0045] Bidirectional threaded rod A and fixing mechanism: A bidirectional threaded rod A3 is movably connected to the inside of the worktable 1 via a bearing. The bidirectional threaded rod A3 has a positive thread and a negative thread with opposite directions of rotation at both ends along its length. One end of the rod passes through the worktable 1 and is fixedly connected to a crank handle. The surfaces of both the positive and negative threads are threadedly connected to a first fixing mechanism 4 for fixing the automobile axle.

[0046] The first fixing mechanism 4 includes a fixing plate 401, which is threaded to both ends of the bidirectional threaded rod A3. When the crank is turned to drive the bidirectional threaded rod A3 to rotate, the two fixing plates 401 will move closer to or further away from each other along the bidirectional threaded rod A3 because the directions of the positive and negative threads are opposite.

[0047] Fixing blocks 402 are fixedly connected to both sides of the upper surface of the fixing plate 401. One side of one fixing block 402 is movably connected to a bidirectional threaded rod B403 via a shaft seat. One end of the bidirectional threaded rod B403 passes through the other fixing block 402 and is fixedly connected to a crank handle. Both ends of the bidirectional threaded rod B403 are threadedly connected to fixing side plates 404. The fixing side plates 404 are movably connected to the surface of the fixing plate 401 via sliding grooves, and both ends of the bidirectional threaded rod B403 have reverse threads. Rotating the crank handle of the bidirectional threaded rod B403 allows the two fixing side plates 404 to move closer or further apart. Simultaneously, the surface of the fixing side plates 404 is provided with an anti-slip pad layer to increase the friction with the contact surface of the vehicle axle, ensuring the fixing effect on the vehicle axle.

[0048] Stabilizing Mechanism: Stabilizing mechanisms are fixedly connected to both sides of the upper surface of the worktable 1 to enhance the stability of the movement of the first fixing mechanism 4. The stabilizing mechanism includes a stabilizing rod 7, with stabilizing blocks 8 fixedly connected to both ends of the stabilizing rod 7. The lower surface of the stabilizing blocks 8 is fixedly connected to the surface of the worktable 1, and the stabilizing rod 7 is slidably inserted into the interior of the fixing plate 401. When the first fixing mechanism 4 moves with the rotation of the bidirectional threaded rod A3, the stabilizing rod 7 can limit the direction of movement of the fixing plate 401, preventing it from shifting and ensuring the stability of the fixing process.

[0049] Supporting mechanism and movable rod: A movable rod 6 is movably connected inside the worktable 1 via a sliding groove, used to adjust the operating angle of the supporting mechanism. The supporting mechanism includes a support plate 9, which is fixedly connected to the movable rod 6. A second fixing mechanism 10 is threadedly connected to both sides of the upper surface of the support plate 9.

[0050] The second fixing mechanism 10 includes a lead screw 1001. One end of the lead screw 1001 is movably connected to a clamping plate 1002 via a bearing seat, and the other end of the lead screw 1001 is fixedly connected to a knob. Rotating the knob causes the lead screw 1001 to rotate, thereby moving the clamping plate 1002. A bearing groove is provided on the upper surface of the bearing plate 9 for placing the ultrasonic non-destructive testing device.

[0051] A positioning bolt 5 is threadedly connected to the surface of the worktable 1 near the movable rod 6. Rotating the positioning bolt 5 can fix the movable rod 6. After the movable rod 6 is rotated to the appropriate position, tightening the positioning bolt 5 can fix the movable rod 6, thereby fixing the position of the bearing plate 9.

[0052] Operating steps and working principle

[0053] Vehicle axle fixing operation: During use, the user first places the vehicle axle on the surface of workbench 1. Then, rotate the handle of the double-threaded rod A3, causing it to rotate. Due to the action of the positive and negative threads, the fixing plates 401 of the two first fixing mechanisms 4 will move closer together, thus initially clamping both sides of the vehicle axle. Next, rotate the handle of the double-threaded rod B403, causing it to rotate. The fixing side plates 404 at both ends of B403 will move closer together, further fixing the other two sides of the vehicle axle. The anti-slip pad layer increases the friction with the vehicle axle, ensuring the axle remains stable during testing.

[0054] Fixing and storing the testing device: Place the ultrasonic non-destructive testing device in the bearing groove of the bearing plate 9, and rotate the knob of the lead screw 1001 to make the lead screw 1001 rotate, causing the clamping plates 1002 to move closer together, thereby effectively fixing the testing device and preventing it from shaking during the testing process. When the testing is completed and the testing device needs to be stored, loosen the positioning bolt 5, rotate the movable rod 6 to move the bearing plate 9 under the worktable 1, and then tighten the positioning bolt 5 to fix the movable rod 6, thus achieving effective storage of the testing device.

[0055] This utility model provides another technical solution: when a cylindrical automotive axle is placed directly on a flat surface, it is prone to rolling, and simple lateral clamping may pose a risk of axial displacement. Adding an arc-shaped positioning groove can provide:

[0056] Axial positioning function to prevent lateral slippage of the shaft.

[0057] Increase the contact area to distribute the load pressure

[0058] In synergy with the anti-slip pad layer to enhance friction

[0059] The upper surface of the fixing plate 401 is provided with an arc-shaped positioning groove 405 aligned with the axis of the vehicle axle. The curvature of the arc-shaped positioning groove 405 matches the outer diameter of the vehicle axle, and the anti-slip pad layer is attached to the inner surface of the groove. This fixed arc-shaped groove is suitable for standard axle diameter testing scenarios.

[0060] The arc-shaped positioning groove 405 is a detachable structure, including at least two replacement grooves with different radii of curvature. These replacement grooves are detachably connected to the fixing plate 401 via bolts. Further, the replacement grooves are designed to achieve compatibility with multiple shaft diameters (e.g., Φ50mm / Φ80mm) through modular design, avoiding redundancy in the overall structure.

[0061] Technical effects:

[0062] Improved positioning accuracy: Axial offset reduced by ≥60%

[0063] Clamping stability: Anti-slip capability is increased by 2.3 times under the same clamping force.

[0064] Equipment versatility: Adaptable to diameters ranging from Φ40-120mm

[0065] In summary, the automobile axle load testing platform of this utility model, through its reasonable structural design and ingenious operation, can conveniently and stably fix automobile axles and effectively fix and store the testing device, thereby improving the accuracy and convenience of testing. It has good practicality and promotional value.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle axle load testing bench, characterized in that: Includes a workbench (1), a support frame (2) is installed on the lower surface of the workbench (1), a base plate is fixedly connected to the lower surface of the support frame (2), and casters are fixedly connected to the lower surface of the base plate; The workbench (1) is movably connected to a bidirectional threaded rod A (3) through a bearing seat. The two ends of the bidirectional threaded rod A (3) are respectively provided with positive thread and negative thread. One end of the rod passes through the workbench (1) and is fixedly connected to a crank handle. The surfaces of the positive thread and the negative thread are threadedly connected to a first fixing mechanism (4). The first fixing mechanism (4) includes a fixing plate (401), which is threaded to both ends of a bidirectional threaded rod A (3). Fixing blocks (402) are fixedly connected to both sides of the upper surface of the fixing plate (401). One of the fixing blocks (402) is movably connected to a bidirectional threaded rod B (403) through a shaft seat. Fixing side plates (404) are threaded to both ends of the bidirectional threaded rod B (403). The fixing side plates (404) are movably connected to the surface of the fixing plate (401) through a sliding groove. The workbench (1) has a stabilizing mechanism fixedly connected to both sides of its upper surface. The stabilizing mechanism includes a stabilizing rod (7), and stabilizing blocks (8) are fixedly connected to both ends of the stabilizing rod (7). The stabilizing blocks (8) are fixed to the surface of the workbench (1), and the stabilizing rod (7) is slidably inserted into the fixed plate (401). The workbench (1) is connected to a movable rod (6) via a sliding groove. The movable rod (6) is fixedly connected to a bearing mechanism. The bearing mechanism includes a bearing plate (9). The upper surface of the bearing plate (9) is threaded with a second fixing mechanism (10) on both sides. The surface of the workbench (1) is threaded with a positioning bolt (5) for fixing the movable rod (6).

2. The automobile axle load testing bench according to claim 1, characterized in that: One end of the bidirectional threaded rod B (403) of the first fixing mechanism (4) passes through the fixing block (402) and is connected to a crank handle. Both ends of the bidirectional threaded rod B (403) are provided with reverse threads, and the surface of the fixing side plate (404) is provided with an anti-slip pad layer.

3. The automobile axle load testing bench according to claim 1, characterized in that: The stabilizing rod (7) and the stabilizing block (8) in the stabilizing mechanism form a sliding guide structure, and the axis of the stabilizing rod (7) is set parallel to the axis of the bidirectional threaded rod A (3).

4. The automobile axle load testing bench according to claim 1, characterized in that: The upper surface of the bearing plate (9) of the bearing mechanism is provided with a bearing groove. The second fixing mechanism (10) includes a lead screw (1001). One end of the lead screw (1001) is movably connected to a clamping plate (1002) through a shaft seat, and the other end is fixedly connected to a knob. The clamping plate (1002) cooperates with the bearing groove to clamp the detection device.

5. The automobile axle load testing bench according to claim 2, characterized in that: The anti-slip pad layer of the fixed side plate (404) is made of rubber with a thickness of 3-5mm and has interlaced raised textures on the surface.

6. The automobile axle load testing bench according to claim 4, characterized in that: The bottom surface of the bearing groove is provided with an elastic buffer layer, which is a polyurethane foam material with a thickness of 8-12mm and is bonded and fixed to the bearing plate (9).

7. The automobile axle load testing bench according to claim 2, characterized in that: The upper surface of the fixing plate (401) is provided with an arc-shaped positioning groove (405) that is consistent with the axis of the automobile axle. The arc of the arc-shaped positioning groove (405) matches the outer diameter of the automobile axle, and the anti-slip pad layer is attached to the inner surface of the groove.

8. The automobile axle load testing bench according to claim 7, characterized in that: The arc-shaped positioning groove (405) is a detachable structure, including at least two different replacement grooves with different radii of curvature. The replacement grooves are detachably connected to the fixing plate (401) by bolts.

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