New energy automobile chassis multi-shaft electric dynamic and static load fatigue test device

Abstract

The utility model provides a new energy automobile chassis multi-axis electric dynamic and static load fatigue test device, which comprises a supporting top frame, supporting columns and supporting bases, the two symmetrically distributed supporting bases are arranged below the supporting top frame, the top of each supporting base is connected with a plurality of supporting columns, and the supporting columns are connected with the supporting bases. The top ends of the supporting columns are connected with the bottom of the supporting top frame. The two groups of test assemblies are arranged below the supporting top frame, and the two groups of test assemblies are used for carrying out a multi-axis electric dynamic and static load fatigue test on a new energy automobile chassis; the test assembly is connected with the supporting top frame through the regulation and control mechanism, and the regulation and control mechanism is used for regulating the position of the test assembly. According to the utility model, the automobile chassis can be installed without extra equipment, and the test assembly can be directly moved to the two sides of the automobile chassis, so that the fatigue test of the automobile chassis is simpler and more convenient, and the production, use and maintenance costs of the test device can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile production and testing machinery, in particular to a multi-axis electric static load fatigue testing device for a new energy automobile chassis. Background Art

[0002] New energy vehicles (NEVs) use unconventional fuels as their power source (or use conventional fuels with new onboard power units) and incorporate advanced technologies in vehicle power control and drive to create vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, and hydrogen engine vehicles.

[0003] The automobile chassis consists of four parts: the transmission, the running gear, the steering system, and the braking system. The chassis supports and mounts the automobile engine and its components and assemblies, forming the overall shape of the vehicle. It also receives the engine's power, enabling the vehicle to move and ensure normal driving. Multi-axis electric static load fatigue testing of the automobile chassis is crucial for bicycle manufacturing. The authorized Chinese utility model patent, "Announcement No. CN214373383U, Title: A Fatigue Test Equipment for Simulated Road Testing of Automobile Chassis," describes a test equipment that simulates the loads experienced by the automobile chassis during actual road driving in the laboratory, allowing for simultaneous testing of the fatigue durability of the wheels and suspension systems. This allows for the installation and testing of the fatigue durability of the wheels and suspension systems of various vehicle models. However, in this application, the vehicle chassis must be mounted on the test equipment before fatigue testing can be performed. Furthermore, the fatigue testing relies on simulated road conditions, making the test equipment expensive to manufacture and operate. Furthermore, it is difficult to perform fatigue testing on specific locations, impacting the effectiveness and efficiency of the fatigue testing. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of poor fatigue test effect and high equipment manufacturing and use costs in the prior art, and to provide a multi-axis electric static load fatigue test device for the chassis of new energy vehicles.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a multi-axis electric static load fatigue test device for a new energy vehicle chassis, comprising a supporting top frame,

[0007] Support columns and support bases: two symmetrically distributed support bases are provided below the support top frame; the top of each support base is connected to a plurality of support columns, and the top of each support column is connected to the bottom of the support top frame;

[0008] Test assembly: two sets of test assemblies are arranged under the support top frame, and the two sets of test assemblies are used to perform multi-axis electric static load fatigue tests on the chassis of new energy vehicles;

[0009] A regulating mechanism, wherein the test assembly is connected to the supporting top frame via the regulating mechanism, and the regulating mechanism is used to adjust the position of the test assembly;

[0010] The regulating mechanism includes a transverse moving assembly and a longitudinal moving assembly. The transverse moving assembly is installed in the inner cavity of the supporting top frame. Two longitudinal moving assemblies are connected to the lower side of the transverse moving assembly. The two longitudinal moving assemblies are respectively connected to the two test assemblies.

[0011] An auxiliary stabilizing assembly, the auxiliary stabilizing assembly being connected to the bottom side of the longitudinal moving assembly and being slidably connected to the supporting base;

[0012] A synchronous locking component is connected to a position between the supporting top frame and the supporting base, and is used to synchronously lock the transverse movement component and the auxiliary stabilization component.

[0013] In this technical solution, the positions of the two test assemblies can be adjusted by using a regulating mechanism, so that the test assemblies on both sides can be used to carry out multi-axis electric static load fatigue tests on the new energy vehicle chassis. No additional equipment is required to install the vehicle chassis, and the test assemblies can be directly moved to both sides of the vehicle chassis, making the fatigue test of the vehicle chassis simpler and reducing the production, use and maintenance costs of the test equipment. In addition, the position of the test assembly can be freely adjusted, so that fatigue tests can be carried out on different positions of the vehicle chassis, thereby improving the effect and efficiency of the vehicle chassis fatigue test.

[0014] Preferably, the test assembly comprises a mounting plate, one side of the mounting plate is connected to a retractor, and one end of the retractor away from the mounting plate is connected to the test plate.

[0015] In this technical solution, the test assembly can be used to perform fatigue tests on the automobile chassis.

[0016] Preferably, the traverse assembly includes a dual-axis power source, and the dual-axis power source is connected to the inner cavity of the supporting top frame;

[0017] Both output ends of the dual-axis power source are connected to a transverse threaded shaft, and one end of the transverse threaded shaft away from the dual-axis power source is rotatably connected to the inner wall of the supporting top frame;

[0018] The surface of the transverse threaded shaft is threadedly connected to a movable plate, and the bottom of the movable plate is connected to a plurality of connecting plates;

[0019] The bottom end of the connecting plate is connected to the top of the follower frame shell.

[0020] In this technical solution, a transverse movement assembly is used to synchronously move the positions of the test assemblies on both sides.

[0021] Preferably, the inner wall of the supporting top frame is connected with a plurality of anti-deflection tracks, and the surface of the anti-deflection track is slidably connected to the movable plate.

[0022] In this technical solution, the anti-deviation track can be used to limit the moving trajectory of the moving plate.

[0023] Preferably, the longitudinal movement assembly includes a single-axis power source, and the single-axis power source is installed in the inner cavity of the follower frame shell;

[0024] The output end of the single-axis power source is connected to a vertical threaded shaft, and a mounting plate is threadedly connected to the surface of the vertical threaded shaft.

[0025] In this technical solution, the height of the test assembly can be adjusted using the longitudinal movement assembly.

[0026] Preferably, a plurality of fixed rails are connected to the bottom of the follower frame housing, and the surfaces of the fixed rails are slidably connected to the mounting plate.

[0027] In this technical solution, the use of fixed rails can increase the stability of the auxiliary plate and at the same time limit the movement trajectory of the mounting plate.

[0028] Preferably, the auxiliary stabilizing assembly includes an auxiliary plate, the top of the auxiliary plate is connected to the bottom end of the fixed track, and the top of the auxiliary plate is rotatably connected to the bottom end of the vertical threaded shaft;

[0029] Two symmetrically distributed sliding columns are connected to one side of the auxiliary plate. The surfaces of the sliding columns are slidably connected to the support base, and one end of the sliding column away from the auxiliary plate is connected to the anti-slip plate.

[0030] In this technical solution, the auxiliary stabilizing component can move along with the lateral movement of the test component to support the test component, making the test component more stable when in use.

[0031] Preferably, a plurality of moving wheels are installed on the bottom of the auxiliary plate and the bottom of the supporting base.

[0032] In this technical solution, the movable wheels can facilitate the movement of the auxiliary plate and the overall movement of the test device.

[0033] Preferably, the synchronous locking assembly includes a bidirectional stud, both ends of which are rotatably connected to the top of the support base and the bottom of the support top frame respectively;

[0034] The surface of the bidirectional stud is threadedly connected to two symmetrically distributed upper and lower movable tooth plates, and the top of the upper movable tooth plate is engaged with the follower gear when it is in contact with the follower gear, and the follower gear is connected to the surface of the horizontal threaded shaft;

[0035] The bottom of the movable rack plate is connected to two symmetrically distributed fixed racks, and a movable rack is provided below the fixed rack. The fixed rack and the movable rack are engaged when they are in contact with each other.

[0036] The two ends of the movable rack are respectively connected to the auxiliary plate and the anti-slip plate.

[0037] In this technical solution, the longitudinal movement component can be locked synchronously from the upper and lower sides using a synchronous locking component, thereby increasing the stability of the test component during use, and increasing the safety of the fatigue test and the stability of the results.

[0038] Preferably, the support base is provided with two sliding grooves, and the movable rack slides in the sliding grooves.

[0039] In this technical solution, the fixed rack and the movable rack are engaged when they are in contact with each other.

[0040] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0041] The positive progress effect of this utility model is:

[0042] The utility model utilizes a regulating mechanism to adjust the positions of the two test assemblies, thereby utilizing the test assemblies on both sides to carry out a multi-axis electric static load fatigue test on a new energy vehicle chassis. No additional equipment is required to install the vehicle chassis, and the test assemblies can be directly moved to both sides of the vehicle chassis, making the fatigue test of the vehicle chassis simpler and reducing the production, use and maintenance costs of the test device. Moreover, the position of the test assembly can be freely adjusted, so that fatigue tests can be carried out on different positions of the vehicle chassis, thereby improving the effect and efficiency of the vehicle chassis fatigue test. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a structural schematic diagram of a multi-axis electric static load fatigue test device for a new energy vehicle chassis according to an embodiment of the present utility model.

[0044] Figure 2 for Figure 1 The internal structure diagram of the multi-axis electric static load fatigue test device for the new energy vehicle chassis is shown.

[0045] Figure 3 for Figure 1 The diagram shows a top view of the structure of the auxiliary stabilization component of the multi-axis electric static load fatigue test device for the new energy vehicle chassis.

[0046] Figure 4 for Figure 1 The diagram shows the structural connection relationship between some lateral moving components and follower gears of the multi-axis electric static load fatigue test device for the new energy vehicle chassis.

[0047] Figure 5 for Figure 2 The diagram shows a partial enlarged structural diagram of point A of the multi-axis electric static load fatigue test device for the chassis of a new energy vehicle.

[0048] Description of Reference Numerals

[0049] 1. Support the top frame;

[0050] 2. Support column;

[0051] 3. Support base;

[0052] 4. Test assembly; 41. Mounting plate; 42. Retractor; 43. Test plate;

[0053] 5. Transverse movement assembly; 51. Dual-axis power source; 52. Transverse threaded shaft; 53. Moving plate; 54. Connecting plate; 55. Follower frame; 56. Anti-deflection track;

[0054] 6. Longitudinal movement assembly; 61. Single-axis power source; 62. Vertical threaded shaft; 63. Fixed track;

[0055] 7. Auxiliary stabilizing assembly; 71. Auxiliary plate; 72. Sliding column; 73. Anti-slip plate; 74. Moving wheel;

[0056] 8. Synchronous locking assembly; 81. Bidirectional stud; 82. Moving gear plate; 83. Follower gear; 84. Fixed rack; 85. Moving rack. DETAILED DESCRIPTION

[0057] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0058] Figures 1 to 5 The structure diagram of the embodiment of the multi-axis electric static load fatigue test device for chassis of new energy vehicles of the present invention is shown. The multi-axis electric static load fatigue test device for chassis of new energy vehicles comprises a supporting top frame 1,

[0059] Support columns 2 and support bases 3. Two symmetrically distributed support bases 3 are provided below the support top frame 1. The top of each support base 3 is connected to multiple support columns 2, and the top of the support column 2 is connected to the bottom of the support top frame 1;

[0060] Test assembly 4, two groups of test assemblies 4 are provided below the supporting top frame 1, and the two groups of test assemblies 4 are used to perform multi-axis electric static load fatigue tests on the chassis of new energy vehicles;

[0061] A regulating mechanism, wherein the test assembly 4 is connected to the supporting top frame 1 via the regulating mechanism, and the regulating mechanism is used to adjust the position of the test assembly 4;

[0062] The regulating mechanism includes a transverse movement component 5 and a longitudinal movement component 6. The transverse movement component 5 is installed in the inner cavity of the supporting top frame 1. Two longitudinal movement components 6 are connected to the lower side of the transverse movement component 5. The two longitudinal movement components 6 are respectively connected to the two test components 4.

[0063] An auxiliary stabilizing assembly 7, the auxiliary stabilizing assembly 7 is connected to the bottom side of the longitudinal moving assembly 6, and the auxiliary stabilizing assembly 7 is slidably connected to the supporting base 3;

[0064] The synchronous locking component 8 is connected to a position between the supporting top frame 1 and the supporting base 3 , and is used to synchronously lock the transverse movement component 5 and the auxiliary stabilization component 7 .

[0065] In this technical solution, the positions of the two test assemblies 4 can be adjusted by using a regulating mechanism, so that the test assemblies 4 on both sides can be used to perform multi-axis electric static load fatigue tests on the new energy vehicle chassis. No additional equipment is required to install the vehicle chassis, and the test assemblies 4 can be directly moved to both sides of the vehicle chassis, making the fatigue test of the vehicle chassis simpler and reducing the production, use and maintenance costs of the test equipment. In addition, the position of the test assembly 4 can be freely adjusted, so that fatigue tests can be performed on different positions of the vehicle chassis, thereby improving the effect and efficiency of the vehicle chassis fatigue test.

[0066] The test assembly 4 includes a mounting plate 41 , a retractor 42 is connected to one side of the mounting plate 41 , and a test plate 43 is connected to one end of the retractor 42 away from the mounting plate 41 .

[0067] In this technical solution, the test assembly 4 can be used to perform fatigue tests on the automobile chassis.

[0068] When in use, the retractors 42 on both sides are used to drive the test plate 43 toward the automobile chassis to pressurize the automobile chassis, and then move it backward, repeating the cycle to complete the multi-axis electric static load fatigue test of the new energy vehicle chassis.

[0069] The traverse assembly 5 includes a dual-axis power source 51, which is connected to the inner cavity of the supporting top frame 1;

[0070] The two output ends of the dual-axis power source 51 are connected to a transverse threaded shaft 52, and one end of the transverse threaded shaft 52 away from the dual-axis power source 51 is rotatably connected to the inner wall of the supporting top frame 1;

[0071] The surface of the horizontal threaded shaft 52 is threadedly connected to a movable plate 53, and the bottom of the movable plate 53 is connected to a plurality of connecting plates 54;

[0072] The bottom end of the connecting plate 54 is connected to the top of the follower frame 55 .

[0073] In this technical solution, the transverse movement assembly 5 is used to synchronously move the positions of the test assemblies 4 on both sides.

[0074] The inner wall of the supporting top frame 1 is connected with a plurality of anti-deflection rails 56 , and the surfaces of the anti-deflection rails 56 are slidably connected to the movable plate 53 .

[0075] In this technical solution, the anti-deviation track 56 can be used to limit the moving trajectory of the moving plate 53.

[0076] When in use, the dual-axis power source 51 is used to drive the horizontal threaded shaft 52 to rotate, thereby driving the movable plates 53 on both sides to move toward or away from each other along the anti-deviation track 56, so as to adjust the distance between the test component 4 and the automobile chassis to facilitate the use of the test component 4.

[0077] The longitudinal movement assembly 6 includes a single-axis power source 61, which is installed in the inner cavity of the follower frame 55;

[0078] The output end of the single-axis power source 61 is connected to a vertical threaded shaft 62 , and a mounting plate 41 is threadedly connected to the surface of the vertical threaded shaft 62 .

[0079] In this technical solution, the height of the test assembly 4 can be adjusted by using the longitudinal movement assembly 6.

[0080] A plurality of fixed rails 63 are connected to the bottom of the follower frame 55 , and the surfaces of the fixed rails 63 are slidably connected to the mounting plate 41 .

[0081] In this technical solution, the fixed rail 63 can be used to increase the stability of the auxiliary plate 71 and limit the movement trajectory of the mounting plate 41.

[0082] As needed, the single-axis power source 61 can be used to drive the vertical threaded shaft 62 to rotate, thereby driving the mounting plate 41 to move along the fixed track 63, so that the position of the test assembly 4 can be adjusted, thereby performing fatigue tests on different positions of the automobile chassis.

[0083] The auxiliary stabilizing assembly 7 includes an auxiliary plate 71 , the top of the auxiliary plate 71 is connected to the bottom end of the fixed rail 63 , and the top of the auxiliary plate 71 is rotatably connected to the bottom end of the vertical threaded shaft 62 ;

[0084] Two symmetrically distributed sliding columns 72 are connected to one side of the auxiliary plate 71 . The surfaces of the sliding columns 72 are slidably connected to the support base 3 . One end of the sliding column 72 away from the auxiliary plate 71 is connected to the anti-slip plate 73 .

[0085] In this technical solution, the auxiliary stabilizing component 7 can move along with the lateral movement of the test component 4 to support the test component 4, making the test component 4 more stable when in use.

[0086] A plurality of moving wheels 74 are installed at the bottom of the auxiliary plate 71 and the bottom of the support base 3.

[0087] In this technical solution, the movable wheels 74 can facilitate the movement of the auxiliary plate 71 and the overall movement of the test device.

[0088] When the vertical threaded shaft 62 and the fixed rail 63 move, the auxiliary plate 71 can be driven to move in the same direction, thereby driving the sliding column 72 and the anti-slip plate 73 to move in the same direction, thereby increasing the stability of the longitudinal movement component 6 and other structures with the cooperation of the support base 3.

[0089] The synchronous locking assembly 8 includes a bidirectional stud 81, both ends of which are rotatably connected to the top of the support base 3 and the bottom of the supporting top frame 1;

[0090] The surface of the bidirectional stud 81 is threadedly connected to two symmetrically distributed upper and lower movable tooth plates 82. The top of the upper movable tooth plate 82 is engaged with the follower gear 83 when it is in contact with the surface of the horizontal threaded shaft 52.

[0091] The bottom of the movable rack plate 82 is connected to two symmetrically distributed fixed racks 84, and a movable rack 85 is provided below the fixed rack 84. The fixed rack 84 and the movable rack 85 are engaged when they are in contact with each other.

[0092] The two ends of the movable rack 85 are connected to the auxiliary plate 71 and the anti-slip plate 73 respectively.

[0093] In this technical solution, the synchronous locking assembly 8 can be used to synchronously lock the longitudinal movement assembly 6 from the upper and lower sides, thereby increasing the stability of the test assembly 4 during use, and increasing the safety of the fatigue test and the stability of the results.

[0094] The support base 3 is provided with two sliding grooves, and the movable rack 85 slides in the sliding grooves.

[0095] In this technical solution, the fixed rack 84 and the movable rack 85 are engaged when they are in contact with each other.

[0096] After the position of the test assembly 4 is adjusted, the bidirectional stud 81 is rotated to drive the movable tooth plates 82 on both sides to move away from each other, so that the movable tooth plate 82 located on the upper side is engaged with the follower gear 83, thereby locking the horizontal threaded shaft 52;

[0097] When the auxiliary plate 71 moves, it can drive the movable rack 85 to move in the same direction, and the movable rack plate 82 located below can drive the fixed rack 84 to move in the same direction, so that the fixed rack 84 and the movable rack 85 are engaged with each other, thereby locking the position of the movable rack 85 and the auxiliary plate 71;

[0098] When the lateral position of the test assembly 4 needs to be moved, the opposite method is used to move the movable gear plate 82 away from the follower gear 83 and the fixed rack 84 away from the movable rack 85. At this time, the position of the test assembly 4 can be moved.

[0099] The bottom surface of the supporting top frame 1 is provided with a plurality of sliding openings, and the connecting plate 54 is interactively connected to the bottom surface of the supporting top frame 1 through the sliding openings.

[0100] The telescopic device 42 is an electric push rod or other components with autonomous telescopic function.

[0101] The dual-axis power source 51 is a dual-axis motor or other equipment that can output bidirectional rotational kinetic energy.

[0102] The single-axis power source 61 is a motor or other equipment that can output rotational kinetic energy.

[0103] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A multi-axis electric static load fatigue test device for a new energy vehicle chassis, comprising a supporting top frame (1), characterized in that: The multi-axis electric static load fatigue test device for the chassis of a new energy vehicle further comprises: a support column (2) and a support base (3); two symmetrically distributed support bases (3) are provided below the support top frame (1); a plurality of support columns (2) are connected to the top of each support base (3); and the top of each support column (2) is connected to the bottom of the support top frame (1); Test components (4), two groups of test components (4) are arranged below the supporting top frame (1), and the two groups of test components (4) are used to perform a multi-axis electric static load fatigue test on a new energy vehicle chassis; A regulating mechanism, wherein the test assembly (4) is connected to the supporting top frame (1) via the regulating mechanism, and the regulating mechanism is used to adjust the position of the test assembly (4); The regulating mechanism comprises a transverse movement component (5) and a longitudinal movement component (6), wherein the transverse movement component (5) is installed in the inner cavity of the supporting top frame (1), and two longitudinal movement components (6) are connected to the lower side of the transverse movement component (5), and the two longitudinal movement components (6) are respectively connected to the two test components (4); An auxiliary stabilizing assembly (7), the auxiliary stabilizing assembly (7) being connected to the bottom side of the longitudinal moving assembly (6), and the auxiliary stabilizing assembly (7) being slidably connected to the supporting base (3); A synchronous locking assembly (8) is connected between the supporting top frame (1) and the supporting base (3), and the synchronous locking assembly (8) is used to synchronously lock the transverse movement assembly (5) and the auxiliary stabilization assembly (7).

2. The multi-axis electric static load fatigue test device for the chassis of a new energy vehicle according to claim 1, characterized in that: The test assembly (4) comprises a mounting plate (41), one side of the mounting plate (41) is connected to a retractor (42), and one end of the retractor (42) away from the mounting plate (41) is connected to a test plate (43).

3. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 1, characterized in that: The transverse movement assembly (5) includes a dual-axis power source (51), and the dual-axis power source (51) is connected to the inner cavity of the supporting top frame (1); Both output ends of the dual-axis power source (51) are connected to a transverse threaded shaft (52), and one end of the transverse threaded shaft (52) away from the dual-axis power source (51) is rotatably connected to the inner wall of the supporting top frame (1); The surface of the transverse threaded shaft (52) is threadedly connected to a movable plate (53), and the bottom of the movable plate (53) is connected to a plurality of connecting plates (54); The bottom end of the connecting plate (54) is connected to the top of the follower frame shell (55).

4. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 3, characterized in that: The inner wall of the supporting top frame (1) is connected with a plurality of anti-deflection tracks (56), and the surface of the anti-deflection tracks (56) is slidably connected to the movable plate (53).

5. The multi-axis electric static load fatigue test device for the chassis of a new energy vehicle according to claim 1, characterized in that: The longitudinal movement assembly (6) includes a single-axis power source (61), and the single-axis power source (61) is installed in the inner cavity of the follower frame (55); The output end of the single-axis power source (61) is connected to a vertical threaded shaft (62), and the surface of the vertical threaded shaft (62) is threadedly connected to a mounting plate (41).

6. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 5, characterized in that: The bottom of the follower frame (55) is connected to a plurality of fixed rails (63), and the surfaces of the fixed rails (63) are slidably connected to the mounting plate (41).

7. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 1, characterized in that: The auxiliary stabilizing assembly (7) includes an auxiliary plate (71), the top of the auxiliary plate (71) is connected to the bottom of the fixed track (63), and the top of the auxiliary plate (71) is rotatably connected to the bottom of the vertical threaded shaft (62); One side of the auxiliary plate (71) is connected to two symmetrically distributed sliding columns (72), the surface of the sliding column (72) is slidably connected to the support base (3), and the end of the sliding column (72) away from the auxiliary plate (71) is connected to the anti-slip plate (73).

8. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 7, characterized in that: The auxiliary plate (71) and the bottom of the support base (3) are both equipped with a plurality of moving wheels (74).

9. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 1, characterized in that: The synchronous locking assembly (8) includes a bidirectional stud (81), and both ends of the bidirectional stud (81) are rotatably connected to the top of the support base (3) and the bottom of the supporting top frame (1) respectively; The surface of the bidirectional stud (81) is threadedly connected with two symmetrically distributed upper and lower movable tooth plates (82), and the top of the upper movable tooth plate (82) is engaged with the follower gear (83) when it is in contact with the top, and the follower gear (83) is connected to the surface of the horizontal threaded shaft (52); The bottom of the movable tooth plate (82) is connected to two symmetrically distributed fixed racks (84), and a movable rack (85) is provided below the fixed rack (84). The fixed rack (84) and the movable rack (85) are engaged when they are attached to each other; The two ends of the movable rack (85) are respectively connected to the auxiliary plate (71) and the anti-slip plate (73).

10. The multi-axis electric static load fatigue test device for a new energy vehicle chassis according to claim 9, characterized in that: The support base (3) is provided with two sliding grooves, and the movable rack (85) slides in the sliding grooves.

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