Rack for testing automobile fuel tanks simulating a vehicle body

Abstract

The utility model discloses a test rig for automobile oil tank test simulation vehicle body, including support frame, the top of support frame is equipped with benchmark board, and the benchmark board is equipped with a plurality of fixed holes according to rectangular array mode, and the utility model discloses can fix the oil tank of different models to reduce the use number of test rig, solves the problem of high cost and occupies the space of test rig big.

Description

Technical Field

[0001] This utility model relates to a test bench, and more particularly to a test bench for simulating the vehicle body in automobile fuel tank testing. Background Technology

[0002] During the fuel tank test, the fuel tank needs to be fixed on a test bench that simulates the actual installation state of the vehicle to ensure that the state of the fuel tank matches the actual state of the fuel tank on the vehicle during the test.

[0003] In the traditional method, the fuel tank mounting test bench is constructed from carbon steel square tubing welded into a frame structure. Fuel tank clamping blocks and steel strip fixing points are designed based on the fuel tank and vehicle body dimensions. These clamping blocks and steel strip fixing points are the contact points between the fuel tank and the vehicle, and their spatial positions within the test bench correspond to the corresponding points on the vehicle. Because the shape of the fuel tank varies for each vehicle model, a dedicated test bench needs to be designed specifically for each type of fuel tank.

[0004] As fuel tank projects increase, the number of dedicated racks also grows, occupying a huge amount of storage space. At the same time, the manufacturing cost of dedicated racks remains high. Utility Model Content

[0005] The purpose of this invention is to provide a test bench for simulating the vehicle body in automobile fuel tank testing, in order to solve the technical problems in the prior art. It can fix different models of fuel tanks, thereby reducing the number of test benches used and solving the problems of high cost and large space occupation of test benches.

[0006] This utility model provides a test bench for simulating the vehicle body in automobile fuel tank testing, including a support frame, a reference plate on the top of the support frame, and a plurality of fixing holes in a rectangular array on the reference plate.

[0007] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, the support frame includes a bottom rectangular frame and a top rectangular frame, and the four corners of the bottom rectangular frame are fixedly connected to the four corners of the top rectangular frame by support columns.

[0008] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, the upper end of each of the supporting columns is connected to the top rectangular frame via two upper reinforcing rods, and the lower end of each of the supporting columns is connected to the bottom rectangular frame via two lower reinforcing rods.

[0009] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, multiple supporting crossbeams are provided inside the bottom rectangular frame; right-angle limiting blocks are fixed at the four corners of the top rectangular frame.

[0010] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, multiple support blocks are fixed on the inner walls of the two long sides of the top rectangular frame, and guide posts are fixed on the top of the support blocks; limiting holes that cooperate with the guide posts are provided on the reference plate.

[0011] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, coordinate values ​​are marked on the top surface of the reference plate next to each of the fixing holes.

[0012] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, the reference plate has multiple weight reduction holes, which are distributed in a rectangular array.

[0013] In the aforementioned test bench for simulating the vehicle body for automobile fuel tank testing, preferably, two forklift connection frames are fixed on the two long sides of the reference plate.

[0014] In the aforementioned test bench for simulating a car body for testing a car fuel tank, preferably, a plurality of fuel tank connecting assemblies are installed at the bottom of the reference plate. The fuel tank connecting assembly includes a connecting plate, a connecting post, a connecting sleeve, and a horizontal arm. The connecting plate is horizontally arranged and has two mounting holes. The top end of the connecting post is welded and fixed to the bottom surface of the connecting plate, and the lower end of the connecting post is inserted and connected to the connecting sleeve. The lower end of the connecting sleeve is welded and fixed to the horizontal arm. An opening is provided on the side wall of the connecting sleeve, and locking plates are provided on both sides of the opening. The two locking plates are connected by a bolt assembly.

[0015] In the aforementioned test bench for simulating the vehicle body for testing automobile fuel tanks, preferably, a groove extending along its length is provided on the horizontal arm, and a steel strip connecting block or a fuel tank conforming pressure block is installed in the groove.

[0016] Compared with existing technologies, this invention, by setting a support frame and a reference plate, and providing a rectangular array of fixing holes on the reference plate, allows for the identification of suitable fixing holes for the pressure blocks and steel strips of different fuel tank models when fixing the fuel tank. This makes the invention applicable to fixing all models of fuel tanks, solving the problem of developing a corresponding test bench for each fuel tank model in existing technologies. This reduces the manufacturing cost of the test bench and also solves the problem of excessive space required for storing numerous test benches. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model;

[0018] Figure 2 This is a disassembly diagram of the present invention;

[0019] Figure 3This is an isometric view of the reference plate of this utility model;

[0020] Figure 4 This is a bottom view of the reference plate of this utility model;

[0021] Figure 5 This is an isometric drawing of the support frame of this utility model;

[0022] Figure 6 This is an isometric view of the steel strip connecting block installed on the fuel tank connecting assembly of this utility model;

[0023] Figure 7 This is an isometric view of the oil tank connecting assembly of this utility model with an oil tank profiled pressure block.

[0024] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Base plate; 3. Fixing hole; 4. Bottom rectangular frame; 5. Top rectangular frame; 6. Support column; 7. Upper reinforcing rod; 8. Lower reinforcing rod; 9. Support beam; 10. Right-angle limit block; 11. Support block; 12. Guide column; 13. Limiting hole; 14. Weight reduction hole; 15. Forklift connecting frame; 16. Fuel tank connecting assembly; 17. Connecting plate; 18. Connecting column; 19. Connecting sleeve; 20. Horizontal arm; 21. Mounting hole; 22. Slide groove; 23. Steel strip connecting block; 24. Fuel tank conforming pressure block; 25. Locking plate. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] Embodiments of this utility model: such as Figures 1-7 As shown, a test bench for simulating the vehicle body in automobile fuel tank testing includes a support frame 1, a reference plate 2 on the top of the support frame 1, and a plurality of fixing holes 3 arranged in a rectangular array on the reference plate 2.

[0027] In this embodiment, the fixing hole 3 is a threaded hole. The fuel tank connecting assembly 16 is fixed to the bottom of the reference plate 2 by bolts engaging with the threaded connection of the fixing hole 3. The fuel tank steel strip is then connected to the fuel tank steel strip by the steel strip connecting block 23 on the fuel tank connecting assembly 16. The fuel tank is limited and protected by the fuel tank profile pressure block 24. The reference plate 2 is used to simulate a car body. After the fuel tank is fixed on the reference plate 2, this product can be fixed on experimental equipment to conduct various experiments on the fuel tank.

[0028] Since the reference plate 2 has several fixing holes 3 arranged in a rectangular array, this product can be used for various types of oil tanks, solving the problem that in the prior art, a corresponding test bench needs to be developed for each type of oil tank.

[0029] Specifically, the support frame 1 includes a bottom rectangular frame 4 and a top rectangular frame 5. The four corners of the bottom rectangular frame 4 are fixedly connected to the four corners of the top rectangular frame 5 through support columns 6.

[0030] The bottom rectangular frame 4 and the top rectangular frame 5 are exactly the same size, and they are each welded together from four steel pipes.

[0031] To ensure the overall structural strength of the support frame 1 and to ensure its long-term use without damage, it is preferable that the upper end of each support column 6 is connected to the top rectangular frame 5 by two upper reinforcing rods 7, and the lower end of each support column 6 is connected to the bottom rectangular frame 4 by two lower reinforcing rods 8.

[0032] Both the upper reinforcing rod 7 and the lower reinforcing rod 8 are inclined at 45° to form a triangular support structure, which improves the load-bearing capacity of the four sides of the bottom rectangular frame 4 and the top rectangular frame 5. Multiple supporting beams 9 are installed inside the bottom rectangular frame 4 to improve its structural stability and prevent deformation.

[0033] In this embodiment, the reference plate 2 and the support frame 1 are detachable structures. This design allows for individual replacement; if the support frame 1 is damaged, it can be replaced separately, and if the reference plate 2 is damaged, it can be replaced separately, effectively reducing maintenance costs. Furthermore, this design facilitates the assembly and disassembly of the fuel tank. The fuel tank is first fixed to the reference plate 2, and then the reference plate 2 is installed, which effectively improves work efficiency.

[0034] To prevent the reference plate 2 from moving laterally on the support frame 1, right-angle limiting blocks 10 are fixed at each of the four corners of the top rectangular frame 5. Furthermore, two support blocks 11 are fixed to the inner walls of the two long sides of the top rectangular frame 5, and a guide post 12 is fixed to the top of each support block 11. Limiting holes 13 that mate with the guide posts 12 are provided on the reference plate 2.

[0035] When installing the reference plate 2, the four guide posts 12 are respectively inserted into the four limiting holes 13 to align the reference plate 2 with the support frame 1. After the reference plate 2 is installed in place, the four right-angle limiting blocks 10 limit the four corners of the reference plate 2, preventing the reference plate 2 from moving in the horizontal direction. The setting of the four right-angle limiting blocks 10 also effectively improves the life of the four guide posts 12.

[0036] The support block 11 has threaded holes at both ends. The reference plate 2 has open holes on both sides of the limiting hole 13 that are opposite to the threaded holes. The reference plate 2 can be fixedly connected to the support block 11 by using bolts to connect with the threaded holes on the support block 11, so as to prevent the reference plate 2 from falling off the support frame 1.

[0037] Preferably, coordinate values ​​are marked on the top surface of the reference plate 2 next to each fixing hole 3. In this embodiment, the coordinate values ​​are preferably marked on the left side of each fixing hole 3. The coordinate values ​​are not shown in the figure, but can be laser-engraved.

[0038] In order to reduce the weight of the reference plate 2 and provide more operational space for disassembling and assembling the oil tank, this embodiment provides multiple weight reduction holes 14 on the reference plate 2. The weight reduction holes 14 are square holes and are distributed in a rectangular array.

[0039] Two forklift connection frames 15 are fixed to the two long sides of the base plate 2. The forklift connection frames 15 are bolted to the base plate 2, and the forklift connection frames 15 and the base plate 2 form a forklift fork connection hole. The forklift connection frames 15 on the two long sides are arranged opposite each other. This facilitates the use of forklifts to move the base plate 2.

[0040] Furthermore, multiple tank connection assemblies 16 are installed at the bottom of the reference plate 2. Each tank connection assembly 16 includes a connecting plate 17, a connecting column 18, a connecting sleeve 19, and a horizontal arm 20. The connecting plate 17 is horizontally positioned and has two mounting holes 21. The connecting plate 17 can be fixed to the bottom of the reference plate 2 by passing a bolt assembly through the mounting holes 21 and the fixing holes on the reference plate 2. The top of the connecting column 18 is welded to the bottom surface of the connecting plate 17 and is arranged perpendicular to the connecting plate 17. The lower end of the connecting column 18 is inserted into the connecting sleeve 19 and the lower end of the connecting sleeve 19 is welded to the horizontal arm 20. The side wall of the connecting sleeve 19 has an opening, and locking plates 25 are provided on both sides of the opening. The locking plates 25 are welded to the outer wall of the connecting sleeve 19 and the two locking plates 25 are connected by a bolt assembly.

[0041] To improve adjustment accuracy, the outer wall of the connecting column 18 is provided with a first scale value along the axial direction and a second scale value along the circumference. The first scale value can be used to visually indicate the displacement of the connecting sleeve 19 in the height direction, while the second scale value indicates the angle of rotation of the connecting sleeve 19 relative to the connecting column 18. The connecting sleeve 19 can be fixed to the connecting column 18 by tightening the bolt assembly on the two locking plates 25.

[0042] A groove 22 extending along its length is provided on the horizontal arm 20, and a steel strip connecting block 23 or an oil tank conforming pressure block 24 is installed in the groove 22.

[0043] The steel strip connecting block 23 has a threaded through hole extending vertically. The upper end of the steel strip connecting block 23 is connected to the slide groove 22 by bolts, and the lower end of the steel strip connecting block 23 is connected to the tank steel strip by bolts to fix the end of the tank steel strip.

[0044] The bottom surface of the fuel tank contour block 24 has an arc-shaped limiting surface, and the top of the fuel tank contour block 24 has two threaded holes. The fuel tank contour block 24 is connected to the slide groove 22 by two bolts. The arc-shaped limiting surface on the fuel tank contour block 24 is used to limit the arc-shaped surface at the corner of the fuel tank to prevent displacement of the fuel tank. It can also protect the corners of the fuel tank.

[0045] The working principle of this utility model is as follows: When testing the fuel tank, the fuel tank is placed on the reference plate 2, and the position of the fuel tank is adjusted according to the design requirements. Then, the fuel tank connecting assembly 16 is fixed to the reference plate 2 with bolts. Usually, 6-10 fuel tank connecting assemblies 16 are required for one fuel tank. At least 4 fuel tank connecting assemblies 16 are equipped with steel strip connecting blocks 23, and the remaining steel strip connecting blocks 23 are equipped with fuel tank shaping pressure blocks 24. After installation, the coordinate values ​​of the steel strip connecting blocks 23 and fuel tank shaping pressure blocks 24, as well as the coordinate values ​​of the fixing holes 3 corresponding to the four corners of the bottom surface of the fuel tank, are recorded and saved. Then, this product is placed on the experimental equipment to test the various parameters of the fuel tank.

[0046] When conducting the next experiment on this model of fuel tank, simply refer to the recorded coordinate values ​​and install and fix the tank according to these coordinates to ensure that the positions of the fuel tank, the pressure block, and the steel belt remain consistent. This ensures the accuracy of the experimental data.

[0047] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A test bench for simulating a car body during automobile fuel tank testing, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with a reference plate (2), and the reference plate (2) is provided with a number of fixing holes (3) in a rectangular array.

2. The test bench for simulating a car body for testing an automobile fuel tank according to claim 1, characterized in that: The support frame (1) includes a bottom rectangular frame (4) and a top rectangular frame (5). The four corners of the bottom rectangular frame (4) are fixedly connected to the four corners of the top rectangular frame (5) through support columns (6).

3. The test bench for simulating a car body for testing an automobile fuel tank according to claim 2, characterized in that: The upper end of each of the support columns (6) is connected to the top rectangular frame (5) by two upper reinforcing rods (7), and the lower end of each of the support columns (6) is connected to the bottom rectangular frame (4) by two lower reinforcing rods (8).

4. The test bench for simulating a car body for testing an automobile fuel tank according to claim 3, characterized in that: The bottom rectangular frame (4) is provided with multiple supporting beams (9); right-angle limiting blocks (10) are fixed at the four corners of the top rectangular frame (5).

5. The test bench for simulating a car body for testing an automobile fuel tank according to claim 2, characterized in that: Multiple support blocks (11) are fixed on the inner walls of the two long sides of the top rectangular frame (5), and guide posts (12) are fixed on the top of the support blocks (11); the reference plate (2) is provided with limiting holes (13) that cooperate with the guide posts (12).

6. The test bench for simulating a car body for testing an automobile fuel tank according to claim 5, characterized in that: The reference plate (2) has coordinate values ​​marked next to each of the fixing holes (3) on its top surface.

7. The test bench for simulating a car body for testing an automobile fuel tank according to claim 6, characterized in that: The reference plate (2) has multiple weight reduction holes (14) arranged in a rectangular array.

8. The test bench for simulating a car body for testing an automobile fuel tank according to claim 7, characterized in that: Two forklift connection frames (15) are fixed on the two long sides of the reference plate (2).

9. The test bench for simulating a car body for testing an automobile fuel tank according to claim 1, characterized in that: The bottom of the reference plate (2) is equipped with multiple oil tank connection assemblies (16). The oil tank connection assembly (16) includes a connecting plate (17), a connecting column (18), a connecting sleeve (19), and a horizontal arm (20). The connecting plate (17) is horizontally arranged and has two mounting holes (21). The top of the connecting column (18) is welded and fixed to the bottom surface of the connecting plate (17). The lower end of the connecting column (18) is inserted and connected to the connecting sleeve (19). The lower end of the connecting sleeve (19) is welded and fixed to the horizontal arm (20). The side wall of the connecting sleeve (19) is provided with an opening. Locking plates (25) are provided on both sides of the opening. The two locking plates (25) are connected by a bolt assembly.

10. The test bench for simulating a vehicle body for automobile fuel tank testing according to claim 9, characterized in that: The horizontal arm (20) is provided with a groove (22) extending along its length, and a steel strip connecting block (23) or an oil tank conforming pressure block (24) is installed in the groove (22).

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