Multi-angle frame vibration test bench

Abstract

The utility model relates to a multi-angle frame vibration test stand, which comprises an angle adjusting base, an angle control hydraulic rod, a vibration test stand and a frame body, the vibration test stand is connected with the upper part of the angle control hydraulic rod through a rotating shaft, and the lower end of the angle control hydraulic rod is fixedly connected to the angle adjusting base through a spring steel plate; the vibration test bed further comprises a vibration table body and a driving machine, the front portion of the vibration table body is fixedly provided with one guide plate through a support, the rear portion of the vibration table body is fixedly provided with a sliding seat sliding rail, the adjusting sliding seat moves back and forth on the sliding seat sliding rail through a sliding block, and the two guide plates are installed on the adjusting sliding seat side by side. According to the vehicle frame anti-fatigue testing device, the safety and the quality level of a vehicle frame can be comprehensively and accurately mastered, and the anti-fatigue capacity of the vehicle frame at various working angles can be effectively mastered.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle frame testing equipment, specifically a multi-angle vehicle frame vibration test bench. Background Technology

[0002] Three-wheeled vehicles often travel on unpaved roads, some of which are rugged and have a certain slope. When vehicles travel on such roads, the frame will be subjected to a large impact. In order to test the safety and quality of the frame and determine its fatigue resistance, vibration tests need to be conducted on the vehicle.

[0003] Currently, a utility model patent with publication number CN213481714U discloses a vehicle frame vibration fatigue testing machine, specifically a vehicle frame vibration fatigue testing machine, including a base; a first vibration device disposed at one end of the base for fixing the wheel hub connection on one side of the vehicle frame; a sliding seat movably disposed on the base, and a second vibration device disposed on the sliding seat; an adjustment device is provided on the base, one end of which is connected to the base, and the position of the sliding seat on the base is adjusted by the adjustment device, thereby adjusting the distance between the first and second vibration devices. This utility model uses the first vibration device and the position-adjustable second vibration device disposed on the base to fix the four wheel hubs of the vehicle frame to vibrate, thereby conducting a vibration fatigue test on the vehicle frame, solving the problem that the prior art cannot conduct fatigue tests on the entire vehicle frame.

[0004] As can be seen from the above-disclosed technical content, as prior art, the utility model with announcement number CN213481714U uses a first vibration device and a second vibration device that can adjust the position on the base to fix the four wheel hubs of the frame to vibrate, so as to conduct a vibration fatigue test on the frame. This solves the problem that the prior art cannot conduct fatigue tests on the entire frame. However, this patent can only test the frame in a horizontal state and cannot conduct multi-angle vibration tests on the vehicle. It cannot fully grasp the safety and quality level of the frame, as well as the fatigue resistance of the frame. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a multi-angle frame vibration test bench, which can comprehensively and accurately grasp the safety and quality level of the frame and effectively understand the fatigue resistance of the frame at various working angles.

[0006] To achieve the above objectives, this utility model provides a multi-angle vehicle frame vibration test bench, comprising an angle adjustment base, an angle control hydraulic rod, a vibration test bench, and a vehicle frame body. The vibration test bench is connected to the upper part of the angle control hydraulic rod via a rotating shaft, and the lower end of the angle control hydraulic rod is fixedly connected to the angle adjustment base via a spring steel plate. The vibration test bench also includes a vibration table body and a drive motor. A guide plate is fixedly mounted on the front of the vibration table body via a bracket, and a sliding seat rail is fixedly mounted on the rear of the vibration table body. The sliding seat is adjusted by moving back and forth on the sliding seat rail via a slider. Two guide plates are mounted side by side on the adjusting sliding seat. Vibration generating devices are fixedly mounted below the guide plates on the vibration table body and the adjusting sliding seat, respectively. The drive motor drives and connects to the vibration generating devices. A vehicle frame mounting beam is fixedly mounted on the top of the two vibration generating devices on the adjusting sliding seat. The guide rod of the vibration generating device passes through a guide hole opened on the guide plate. The vibration generating devices of the two guide plates are connected together via a drive shaft.

[0007] In addition, the multi-angle frame vibration test bench proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the guide hole on the guide plate is equipped with a guide bushing.

[0009] As a further improvement of this utility model, the vibration generating device includes a guide rod, a frame mounting beam fixing terminal, an eccentric wheel bearing seat, an eccentric wheel, and a transmission wheel. The eccentric wheel is mounted on the eccentric wheel bearing seat. The drive motor is connected to the transmission wheel via a belt drive. The transmission wheel is connected to the eccentric wheel. The eccentric wheel is hinged to the lower end of the transmission rod. The upper end of the transmission rod is hinged to the guide rod. The frame mounting beam fixing terminal is welded onto the guide rod. The frame mounting beam fixing terminal passes through an opening on the frame mounting beam and is fixed by a nut.

[0010] As a further improvement of this utility model, the vibration table body is equipped with a gyroscope.

[0011] As a further improvement of this utility model, the drive motor is movably mounted on the vibration table body and the adjusting sliding seat via a slide rail and a slider, and the drive motor adjusts the belt tension via a lead screw.

[0012] By means of the above solution, this utility model has at least the following advantages: by driving the vibration generator to provide up and down vibration, the vehicle is subjected to bumps on a plane. By changing the pitch angle of the vibration test bench by controlling the hydraulic rod, the angle change of the vehicle when climbing up and down the slope can be simulated. The safety and quality level of the frame can be fully and accurately grasped, and the fatigue resistance of the frame at various working angles can be effectively understood. Attached Figure Description

[0013] Figure 1This is a three-dimensional schematic diagram of a multi-angle frame vibration test bench;

[0014] Figure 2 This is a 3D view of the vibration test bench for a multi-angle frame vibration test bench;

[0015] Figure 3 This is a 3D view of the vibration generating device of the multi-angle frame vibration test bench;

[0016] Figure 4 This is a schematic diagram showing the usage status of the multi-angle frame vibration test bench;

[0017] In the diagram: 1. Angle adjustment base; 2. Angle control hydraulic rod; 3. Vibration test bench; 3-1. Vibration bench body; 3-2. Adjustment sliding seat; 3-3. Vibration generating device; 3-31. Guide connecting rod; 3-11. Transmission connecting rod; 3-32. Frame mounting beam fixing terminal; 3-33. Eccentric wheel bearing seat; 3-34. Eccentric wheel; 3-35. Transmission wheel; 3-4. Guide plate; 3-5. Frame mounting beam; 3-6. Drive motor; 3-7. Sliding seat slide rail; 4. Frame body. Detailed Implementation

[0018] The multi-angle frame vibration test bench of this utility model is described below with reference to the accompanying drawings.

[0019] In Embodiment 1 of this application, as Figure 1 and Figure 2 As shown, this multi-angle frame vibration test bench (hereinafter referred to as "the present invention") includes an angle adjustment base 1, an angle control hydraulic rod 2, a vibration test bench 3, and a frame body 4. The vibration test bench 3 is connected to the upper part of the angle control hydraulic rod 2 via a rotating shaft, and the lower end of the angle control hydraulic rod 2 is fixedly connected to the angle adjustment base 1 via a spring steel plate. The vibration test bench 3 also includes a vibration table body 3-1 and a drive motor 3-6. A guide plate 3-4 is fixedly installed on the front part of the vibration table body 3-1 via a bracket, and a sliding seat slide rail 3-7 is fixedly installed on the rear part of the vibration table body 3-1. The sliding seat 3-2 is adjusted by sliding... The block moves back and forth on the sliding rail 3-7. Two guide plates 3-4 are installed side by side on the adjusting sliding seat 3-2. Vibration generating devices 3-3 are fixedly installed below the guide plates 3-4 on the vibration table body 3-1 and the adjusting sliding seat 3-2, respectively. The drive motor 3-6 is connected to the vibration generating devices 3-3. The frame mounting beam 3-5 is fixedly installed on the top of the two vibration generating devices 3-3 on the adjusting sliding seat 3-2. The guide connecting rod 3-31 of the vibration generating device 3-3 passes through the guide hole opened on the guide plate 3-4. The vibration generating devices 3-3 on the two guide plates 3-4 are connected together by a drive shaft. The guide hole opened on the guide plate 3-4 is equipped with a guide bushing.

[0020] A vehicle frame vibration fatigue testing machine (hereinafter referred to as "the patent") with utility model announcement number CN213481714U uses a first vibration device and a second vibration device with adjustable position on the base to fix the four wheel hubs of the vehicle frame to vibrate, thereby conducting a vibration fatigue test on the vehicle frame. This solves the problem that the prior art cannot conduct fatigue tests on the entire vehicle frame. However, the patent can only test the vehicle frame in a horizontal state and cannot conduct multi-angle vibration tests on the vehicle, nor can it comprehensively grasp the safety and quality level of the vehicle frame, as well as the fatigue resistance of the vehicle frame. In contrast, the present invention changes the pitch angle of the vibration test bench 3 by controlling the hydraulic rod 2 to simulate the angle changes of the vehicle when climbing and descending slopes. This allows for a comprehensive and accurate grasp of the safety and quality level of the vehicle frame and can effectively understand the fatigue resistance of the vehicle frame at various working angles.

[0021] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 3 As shown, the vibration generating device 3-3 includes a guide rod 3-31, a frame mounting beam fixing terminal 3-32, an eccentric wheel bearing seat 3-33, an eccentric wheel 3-34, and a transmission wheel 3-35. The eccentric wheel 3-34 is mounted on the eccentric wheel bearing seat 3-33. The drive motor 3-6 is connected to the transmission wheel 3-35 via a belt drive. The transmission wheel 3-35 is connected to the eccentric wheel 3-34. The eccentric wheel 3-34 is hinged to the lower end of the transmission rod 3-311, and the upper end of the transmission rod 3-311 is hinged to the guide rod 3-31. The frame mounting beam fixing terminal 3-32 is welded and mounted on the guide rod 3-31. The frame mounting beam fixing terminal 3-32 passes through an opening on the frame mounting beam 3-5 and is fixed by a nut.

[0022] To further optimize the working efficiency of this application and facilitate understanding of the specific tilt angle, the vibration table body 3-1 is equipped with a gyroscope. Since the equipment vibrates continuously during use, and this vibration affects the stability of the transmission device, to ensure the reliability of the transmission structure, the drive motor 3-6 is movably mounted on the vibration table body 3-1 and the adjusting sliding seat 3-2 via a slide rail and slider. The drive motor 3-6 adjusts the belt tension via a lead screw, which holds the drive motor 3-6 back to prevent it from getting too close to the transmission wheel 3-35 and causing vibration failure. This allows the movable drive motor 3-6 to move within a small range, ensuring the stability of the entire transmission system.

[0023] To use the multi-angle frame vibration test bench, simply install it and connect the corresponding wiring and equipment.

[0024] When this utility model is used, its specific operation is as follows:

[0025] like Figure 4As shown, during use, the frame body 4 and the front forks are fixed to the top of the guide rod 3-31 of the vibration generator 3-3 at the front of the vibration table body 3-1 via brackets. The rear wheel of the frame body 4 is suspended and fixed on the frame mounting beam 3-5. Then the experiment can begin. During the experiment, first adjust the lead screw equipped with the drive motor 3-6 to keep the drive motor 3-6 and the large transmission belt of the transmission wheel 3-35 taut. The drive motor 3-6 drives the transmission wheel 3-35 through the belt. The transmission wheel 3-35 drives the eccentric wheel 3-34 to rotate through the shaft. The eccentric wheel 3-34 drives the guide rod 3-31 to move up and down under the constraint of the guide hole of the guide plate 3-4 through the transmission link 3-311. As the speed of the drive motor 3-6 increases, the effect of road bumps can be simulated. Since the two vibration generators 3-3 on the adjusting sliding seat 3-2 are connected by the shaft, only one drive motor 3-6 is needed to drive them. Next, the staff controls the extension and retraction of the hydraulic rod 2 by adjusting the angle of the vibration test bench 3. This allows the vibration test bench 3 to tilt forward or backward. Combined with the vibration generator 3-3, this can simulate the road bumps when climbing or descending a slope. The spring steel plate connected to the angle adjustment base 1 at the lower end of the angle control hydraulic rod 2 can deform to produce more vibrations in the vibration test bench 3, further increasing the intensity of the bumps.

[0026] In summary, the multi-angle frame vibration test bench of this utility model provides up-and-down vibration by driving the vibration generator 3-3 through the drive motor 3-6, simulating the vehicle being bumped on a plane. By changing the pitch angle of the vibration test bench 3 through the angle control hydraulic rod 2, the angle changes of the vehicle climbing up and down slopes can be simulated. It can comprehensively and accurately grasp the safety and quality level of the frame, and effectively understand the fatigue resistance of the frame at various working angles.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A multi-angle vehicle frame vibration test bench, comprising a vibration test bench (3) and a vehicle frame body (4), characterized in that, The vibration test bench (3) is connected to the upper part of the angle control hydraulic rod (2) via a rotating shaft. The lower end of the angle control hydraulic rod (2) is fixedly connected to the angle adjustment base (1) via a spring steel plate. The vibration test bench (3) also includes a vibration table body (3-1) and a drive motor (3-6). A guide plate (3-4) is fixedly installed on the front part of the vibration table body (3-1) via a bracket. A sliding seat rail (3-7) is fixedly installed on the rear part of the vibration table body (3-1). The adjusting sliding seat (3-2) moves back and forth on the sliding seat rail (3-7) via a slider. Two sliding seats are installed side by side on the adjusting sliding seat (3-2). A guide plate (3-4) is used. Vibration generating devices (3-3) are fixedly installed below the guide plate (3-4) on the vibration table body (3-1) and the adjusting sliding seat (3-2). The drive motor (3-6) is connected to the vibration generating device (3-3). The frame mounting beam (3-5) is fixedly installed on the top of the two vibration generating devices (3-3) on the adjusting sliding seat (3-2). The guide rod (3-31) of the vibration generating device (3-3) passes through the guide hole opened on the guide plate (3-4). The vibration generating devices (3-3) on the two guide plates (3-4) are connected together by a drive shaft.

2. The multi-angle frame vibration test bench according to claim 1, characterized in that, The guide holes on the guide plate (3-4) are equipped with guide bushings.

3. The multi-angle frame vibration test bench according to claim 2, characterized in that, The vibration generating device (3-3) includes a guide rod (3-31), a frame mounting beam fixing terminal (3-32), an eccentric wheel bearing seat (3-33), an eccentric wheel (3-34), and a transmission wheel (3-35). The eccentric wheel (3-34) is mounted on the eccentric wheel bearing seat (3-33). The drive motor (3-6) is connected to the transmission wheel (3-35) via a belt drive. The transmission wheel (3-35) is connected to the eccentric wheel (3-34). The eccentric wheel (3-34) is hinged to the lower end of the transmission rod (3-311). The upper end of the transmission rod (3-311) is hinged to the guide rod (3-31). The guide rod (3-31) is welded to the frame mounting beam fixing terminal (3-32). The frame mounting beam fixing terminal (3-32) passes through the opening on the frame mounting beam (3-5) and is fixed by a nut.

4. The multi-angle frame vibration test bench according to claim 1, characterized in that, The vibration table body (3-1) is equipped with a gyroscope.

5. The multi-angle frame vibration test bench according to claim 3, characterized in that, The drive unit (3-6) is movably mounted on the vibration table body (3-1) and the adjusting sliding seat (3-2) via a slide rail and a slider. The drive unit (3-6) adjusts the belt tension via a lead screw.

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