Vibration table for simulating automobile transportation

Abstract

The utility model discloses a simulated automobile transportation vibration table which comprises a rack, a motor is installed in the middle of the rack, an output shaft of the motor is connected with one end of a rotating arm, the other end of the rotating arm is hinged to a third sliding block, and a first sliding rail and a second sliding rail are symmetrically arranged on the two sides of the rack respectively. The two ends of the testing cross beam are slidably connected with the first sliding rail and the second sliding rail through a first sliding block and a second sliding block respectively, a third sliding rail is arranged on one side of the testing cross beam in the length direction of the testing cross beam, the third sliding block is slidably connected with the third sliding rail, and a plurality of mounting holes arranged in the length direction of the rotating arm are formed in the surface of the rotating arm. The hinged end of the third sliding block is hinged to any mounting hole. The beneficial effects of the utility model are that the amplitude of the test cross beam in the front-back direction is adjusted by adjusting the hinged position between the rotating arm and the third sliding block, and the adaptability and flexibility of the equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of product testing equipment technology, and in particular to a vibration table simulating automobile transportation. Background Technology

[0002] A simulated car transport vibration table, also known as a "vibration table," simulates the damage caused to products by bumps and jolting during car transport, and is used to determine whether a product has the ability to withstand transport vibrations.

[0003] Existing vibration tables simulating vehicle transportation can only provide single-frequency reciprocating vibration (vibration in the XYZ axes) to simulate the bumps experienced by products inside a vehicle. However, rapid acceleration and deceleration (Y-axis) of a vehicle are key factors causing product damage. Compared to the X and Z axes, vibration in the Y-axis direction causes the greatest damage to the product. Existing vibration tables simulating vehicle transportation can only provide a single amplitude and cannot simulate different loading scenarios. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a vibration table for simulating automobile transportation, aiming to solve the issue that existing vibration tables for simulating automobile transportation can only provide a single amplitude.

[0005] To solve the above-mentioned technical problems, this utility model provides a vibration table simulating automobile transportation, including a frame. A motor is installed in the middle of the frame, and the output shaft of the motor is connected to one end of a rotating arm. The other end of the rotating arm is hinged to a third slider. Symmetrical first and second slide rails are respectively provided on both sides of the frame. The two ends of the test beam are slidably connected to the first and second slide rails through the first and second sliders, respectively. A third slide rail is provided on one side of the test beam along its own length direction. The third slider is slidably connected to the third slide rail. The surface of the rotating arm is provided with a plurality of mounting holes arranged along its own length direction. The hinged end of the third slider is hinged to any of the mounting holes.

[0006] In some embodiments, the side of the rotating arm is also provided with fixing holes, each fixing hole corresponding to each mounting hole, and the mounting holes corresponding to each fixing hole are connected. The hinge end of the third slider includes a mounting base and a bearing installed in the mounting base. One end of the rotating shaft is fixed to the inner ring of the bearing, and the other end of the rotating shaft is inserted into the mounting hole. A first fastener is inserted from the fixing hole until the rotating shaft is locked.

[0007] In some embodiments, at least two clamping units are also included, and the upper end face of the test beam is provided with at least one sliding groove arranged along its own length direction. A second fastener is slidably embedded inside the sliding groove. The second fastener is used to cooperate with a third fastener to fix the clamping unit above the test beam.

[0008] In some embodiments, the second fastener is a nut, and the third fastener is a bolt that matches the nut.

[0009] In some embodiments, a bracket is also included for mounting the middle part of the platform, the motor is suspended from the middle part of the platform via the bracket, and the output shaft of the motor is arranged upward.

[0010] In some embodiments, the motor is a geared motor.

[0011] The beneficial effects of this utility model are as follows: the output shaft of the motor drives the rotating arm to move, and the rotating arm drives the third slider to slide along the third slide rail. On this basis, the first and second slide rails are used to constrain the movement path of the test beam, so that the test beam can only reciprocate along the guiding direction of the first and second slide rails. By adjusting the hinge position between the rotating arm and the third slider, the amplitude of the test beam in the front and rear directions can be adjusted, thereby improving the adaptability and flexibility of the equipment. Attached Figure Description

[0012] Figure 1 This is a perspective view of the simulated automobile transportation vibration table disclosed in an embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A magnified view of a portion of the area along line A.

[0014] Wherein: 1-stand, 2-motor, 3-rotating arm, 4-first slide rail, 5-second slide rail, 6-third slide rail, 7-test crossbeam, 8-first slider, 9-second slider, 10-third slider, 11-bracket, 301-mounting hole, 302-fixing hole, 1001-mounting seat, 1002-bearing, 1003-rotating shaft, 1004-first fastener, 701-slide groove, 702-second fastener. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer and more explicit, the content of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0016] This embodiment proposes a vibration table for simulating automobile transportation, such as... Figure 1 As shown, the test beam includes a test stand 1, a motor 2 is mounted in the middle of the test stand 1, the output shaft of the motor 2 is connected to one end of a rotating arm 3, the other end of the rotating arm 3 is hinged to a third slider 10, a first slide rail 4 and a second slide rail 5 are respectively provided on both sides of the test stand 1, the two ends of the test beam 7 are slidably connected to the first slide rail 4 and the second slide rail 5 through the first slider 8 and the second slider 9 respectively, and a third slide rail 6 is provided on one side of the test beam 7 along its own length direction, and the third slider 10 is slidably connected to the third slide rail 6.

[0017] In this embodiment, the output shaft of motor 2 drives the rotating arm 3 to move, and the rotating arm 3 drives the third slider 10 to slide along the third slide rail 6. Furthermore, the first slide rail 4 and the second slide rail 5 are used to constrain the movement path of the test beam 7, ensuring that the test beam 7 can only reciprocate along the guiding directions of the first slide rail 4 and the second slide rail 5. This effectively simulates the front-to-back bumps experienced by the product inside the vehicle during transportation. Furthermore, as... Figure 1 and 2 As shown, the surface of the rotating arm 3 is provided with several mounting holes 301 arranged along its length. The hinge end of the third slider 10 is hinged to any of the mounting holes 301. The mounting holes 301 on the surface of the rotating arm 3 provide multiple hinge points, and the hinge end of the third slider 10 can be hinged to any of the mounting holes 301. This design makes the connection between the third slider 10 and the rotating arm 3 more flexible, allowing the length of the rotating arm 3 to be adjusted as needed, thereby adjusting the amplitude of the test beam 7 in the forward and backward direction (Y-axis), improving the adaptability and flexibility of the equipment.

[0018] To ensure the stability and robustness of the shaft, please refer to... Figure 2 Fixing holes 302 can be provided on the side of the rotating arm 3, each fixing hole 302 corresponding to each mounting hole 301, and the mounting holes 301 corresponding to each fixing hole 302 are connected. The hinge end of the third slider 10 includes a mounting base 1001 and a bearing 1002 installed in the mounting base 1001. One end of the rotating shaft 1003 is fixed to the inner ring of the bearing 1002, and the other end of the rotating shaft 1003 is inserted into the mounting hole 301. The rotating shaft 1003 is inserted into and locked by the first fastener 1004 through the fixing hole 302. In addition, the number and position of the mounting holes 301 can be designed and adjusted according to actual needs to adapt to different amplitude task requirements.

[0019] It also includes at least two clamping units (not shown in the figure). The upper end face of the test beam 7 is provided with at least one sliding groove 701 along its own length direction. The sliding groove 701 is slidably embedded with a second fastener 702. The second fastener 702 is used to cooperate with a third fastener (not shown in the figure) to fix the clamping unit above the test beam 7. The product to be tested is flexibly fixed on the test beam 7 by the clamping unit, so as to prevent the product to be tested from falling off during the back and forth vibration of the test beam 7.

[0020] The clamping unit can be implemented using different types of clamps, such as spring clamps and spiral clamps. The groove design allows the second fastener 702 to move freely within the groove 701, thus enabling flexible positioning of the clamping unit on the test beam 7. The second fastener 702 is a nut, and the third fastener is a bolt that matches the nut. This design facilitates installation and disassembly while ensuring high fixing strength. Furthermore, the number and position of the grooves 701 can be adjusted according to actual needs to accommodate products of different sizes and shapes.

[0021] Through the above technical solution, this application can effectively solve the problem of products not being securely fixed during testing. Compared with existing technologies, this application provides a more flexible and reliable fixing method, which can adapt to different types of products and improve the accuracy and reliability of testing.

[0022] Furthermore, the motor 2 can be installed either vertically or horizontally. Taking a vertically installed motor as an example, specifically, the motor 2 is suspended in the middle of the mounting frame 1 via the bracket 11 in the middle of the frame 1, with the output shaft of the motor 2 facing upwards. This design is used to facilitate the rotation of the rotating arm 3 in the horizontal plane. Alternatively, when the motor 2 needs to avoid certain transmission components, it can be installed horizontally. After installation, a steering mechanism is provided on the output shaft of the motor 2, which drives the rotating arm 3 to rotate in the horizontal plane, achieving the same effect. The specific installation method depends on the requirements of the motor 2.

[0023] The bracket 11 can adopt various structural forms, such as a frame structure, cantilever structure, or other suitable structural forms to suspend the motor 2. The material of the bracket 11 can be high-strength steel, aluminum alloy, or other materials with sufficient strength and rigidity. The connection between the bracket 11 and the platform 1 can be welding, bolting, or other reliable connection methods to ensure the stability and reliability of the bracket 11. The output shaft of the motor 2 is positioned upwards, which can be achieved through appropriate mounting brackets or fixing devices to ensure that the motor 2 does not shift position during operation.

[0024] This application solves the installation problem of the motor 2 by installing a bracket 11 in the middle of the test bench, allowing the motor 2 to be suspended in the middle of the test bench 1. The output shaft of the motor 2 is set upwards, effectively utilizing space and ensuring that the motor 2 can stably transmit power. Compared with the prior art, the design of this application is more reasonable and can better meet the usage requirements of a vibration table simulating automobile transportation.

[0025] Optionally, motor 2 is a geared motor. Using geared motor 2 allows for more precise control of the vibration table's movement, thus better simulating the front-to-back vibrations during vehicle transportation. By employing a geared motor, the vibration table can operate over a wider frequency range, more accurately simulating various vibrations encountered by vehicles during transportation, especially front-to-back vibrations, thereby improving the accuracy and reliability of the test.

[0026] The use of a geared motor enables precise control of vibration frequency by adjusting the reduction ratio. Specifically, the output shaft of the geared motor is connected to the transmission mechanism of the vibration table (i.e., the rotating arm 3 in this design). By adjusting the reduction ratio, the movement speed and frequency of the vibration table can be changed. As a preferred embodiment, the geared motor can be a combination of a servo motor and a reducer. This not only achieves precise speed control but also allows for precise adjustment of the vibration amplitude through the servo system. Therefore, the application of the geared motor makes the vibration table more flexible and precise in simulating forward and backward vibrations. Furthermore, the use of a geared motor can reduce mechanical wear on the vibration table and extend the service life of the equipment.

[0027] This application significantly improves the vibration table's ability to simulate the forward and backward vibrations of a vehicle during transportation by employing a geared motor. Compared with existing technologies, the use of a geared motor not only allows the vibration table to operate over a wider frequency range but also enables more precise control of the vibration amplitude in conjunction with the adjustable rotating arm 3, thereby improving the accuracy and reliability of the test.

[0028] The above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the substance of the content of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A vibration table simulating automobile transportation, comprising a frame, characterized in that, A motor is installed in the middle of the test platform. The output shaft of the motor is connected to one end of the rotating arm. The other end of the rotating arm is hinged to a third slider. Symmetrical first and second slide rails are respectively provided on both sides of the test platform. The two ends of the test beam are slidably connected to the first and second slide rails via the first and second sliders, respectively. A third slide rail is provided on one side of the test beam along its own length. The third slider is slidably connected to the third slide rail. The surface of the rotating arm is provided with a plurality of mounting holes arranged along its own length. The hinged end of the third slider is hinged to any of the mounting holes.

2. The simulated automobile transportation vibration table as described in claim 1, characterized in that, The side of the rotating arm is also provided with fixing holes, each fixing hole corresponding to each mounting hole, and the mounting holes evenly connected to each fixing hole. The hinge end of the third slider includes a mounting base and a bearing installed in the mounting base. One end of the rotating shaft is fixed to the inner ring of the bearing, and the other end of the rotating shaft is inserted into the mounting hole. The first fastener is inserted from the fixing hole until the rotating shaft is locked.

3. The simulated automobile transportation vibration table as described in claim 1, characterized in that, It also includes at least two clamping units. The upper end face of the test beam is provided with at least one sliding groove along its own length direction. The interior of the sliding groove is slidably embedded with a second fastener. The second fastener is used to cooperate with a third fastener to fix the clamping unit above the test beam.

4. The simulated automobile transportation vibration table as described in claim 3, characterized in that, The second fastener is a nut, and the third fastener is a bolt that matches the nut.

5. The simulated automobile transportation vibration table as described in claim 1, characterized in that, It also includes a bracket for mounting the middle part of the platform, the motor is suspended in the middle part of the platform via the bracket, and the output shaft of the motor is arranged upward.

6. The simulated automobile transportation vibration table as described in claim 1, characterized in that, The motor is a geared motor.

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