Vehicle frame torsional strength test platform

Abstract

The utility model provides a frame torsional strength test platform, which belongs to the electric vehicle frame torsional test field and comprises a bottom plate and a frame, the frame is arranged in the bottom plate, and the top of the bottom plate is provided with a test mechanism for testing the torsional strength of an electric vehicle frame. The bottom of the bottom plate is provided with a guide assembly for preventing chippings from flying around when the test fails. According to the utility model, through the arranged testing mechanism, the torsion strength of the frame is tested, and the problems that in the prior art, only a fatigue test can be carried out on the frame, how the torsion strength of the frame cannot be known, the torsion strength of the frame is one of essential detection steps, and if a torsion strength test is lacked, the torsion strength of the frame cannot be known are solved. And potential safety hazards are caused when the frame is used.

Description

Technical Field

[0001] The utility model relates to the field of torsional tests of electric vehicle frames, and more specifically, to a test platform for the torsional strength of vehicle frames. Background Art

[0002] Vehicle frames include those of electric bicycles, electric motorcycles, electric tricycles, etc. As the main load-bearing components of electric vehicles, the strength and torsional resistance of vehicle frames are directly related to the driving safety and service life of electric vehicles. The torsional strength of a vehicle frame refers to its ability to resist deformation and damage when subjected to torsional forces, and this performance is crucial for the stability and durability of the vehicle. Therefore, it is necessary to conduct torsional strength tests on vehicle frames during the production of electric vehicle frames.

[0003] After retrieval, in the prior art, the Chinese patent with the patent publication number CN220932386U discloses "a fatigue test mechanism for an electric bicycle frame, which can be used for fatigue testing of an electric vehicle frame and can detect different slopes through a lifting component, thus making the fatigue test data more comprehensive, and therefore enhancing the practicality of the fatigue test mechanism for an electric bicycle frame; it includes an electric vehicle frame, a directional component is arranged on the left side of the electric vehicle frame, and also includes a test platform, a hinge rod, a support plate, and a counterweight. The top of the electric vehicle frame is in close contact with the counterweight. Four sets of legs are arranged at the bottom of the test platform, and stabilizing pads are arranged at the bottom ends of the four sets of legs. The top of the test platform is hinged to the support plate through the hinge rod. A chamber is arranged at the right end of the test platform, and a lifting component is arranged inside the chamber. The lifting component passes through the bottom end of the test platform and is hinged to the support plate", but there are still the following defects:

[0004] (1) However, when this device is used, it can only conduct fatigue tests on the vehicle frame and cannot understand the torsional strength of the vehicle frame. The torsional strength of the vehicle frame is one of the essential detection steps. If the torsional strength test is missing, there will be potential safety hazards when using this vehicle frame.

[0005] (2) However, when this device is in use, if the torsional strength of the vehicle frame is unqualified, it may cause damage to the vehicle frame, and then debris will be generated at the welded joints on the vehicle frame, causing the debris to fly everywhere, thus affecting the normal viewing of the user.

[0006] Therefore, we make improvements and propose a test platform for the torsional strength of vehicle frames. Summary of the Utility Model

[0007] The purpose of the present utility model is to address the problem that a current test platform for the torsional strength of vehicle frames can only conduct fatigue tests on the vehicle frame when in use and cannot understand the torsional strength of the vehicle frame. The torsional strength of the vehicle frame is one of the essential detection steps. If the torsional strength test is missing, there will be potential safety hazards when using this vehicle frame.

[0008] To achieve the above-mentioned utility model purpose, the present utility model provides the following technical solutions:

[0009] A vehicle frame torsional strength test platform to improve the above problems.

[0010] The present utility model is specifically as follows:

[0011] It includes a bottom plate and a vehicle frame. The vehicle frame is arranged inside the bottom plate. A testing mechanism for conducting torsional strength tests on the electric vehicle frame is provided at the top of the bottom plate, and a guiding component for preventing debris from flying everywhere due to the fracture of the welded joints of the vehicle frame in case of test failure is provided at the bottom of the bottom plate;

[0012] The testing mechanism includes a torsion testing machine, a connecting rod, an L-shaped plate, an arc portion, an arc plate, an extension plate, a first lead screw, a fixing plate, a first fixing portion, a second fixing portion, and a second lead screw. The torsion testing machine is fixedly connected to the top of the bottom plate. The connecting rod is fixedly connected to the output end of the torsion testing machine. The L-shaped plate is welded to one end of the connecting rod. The arc portion is welded to the side wall of the L-shaped plate. The arc plate is arranged on one side of the arc portion. The extension plate is welded to the side wall of the arc plate. The first lead screw is rotatably connected to the side wall of the L-shaped plate. The fixing plate is fixedly connected to the top of the bottom plate. The first fixing portion is welded to the top of the fixing plate. The second fixing portion is arranged above the first fixing portion. The second lead screw is rotatably connected to the top of the first fixing portion. One end of the first lead screw is threadedly connected to the extension plate, and one end of the second lead screw is threadedly connected to the second fixing portion.

[0013] As a preferred technical solution of the present utility model, the guiding component includes a guiding groove, a filter screen, and an exhaust fan. The guiding groove is opened at the top of the bottom plate. The filter screen is bolted inside the guiding groove. The exhaust fan is bolted to the bottom of the bottom plate, and the input end of the exhaust fan is communicated with the guiding groove.

[0014] As a preferred technical solution of the present utility model, a plurality of partition plates are fixedly connected to the outer wall of the bottom plate, and a top plate is fixedly connected to the top of the partition plates.

[0015] As a preferred technical solution of the present utility model, a switch door for improving the safety of the device is hinged to the side wall of the partition plate, and a tempered glass plate for facilitating the observation of the test situation is arranged on the side wall of the switch door.

[0016] As a preferred technical solution of the present utility model, a lighting lamp is arranged at the bottom of the top plate, a protective plate is arranged outside the lighting lamp, the top of the protective plate is fixedly connected to the bottom of the top plate, and the protective plate is made of tempered glass.

[0017] As a preferred technical solution of the present utility model, support legs for improving the stability of the bottom plate are bolted to the bottom of the bottom plate. A rectangular plate is welded to the bottom of the support leg, and a threaded groove is provided at the top of the rectangular plate.

[0018] As a preferred technical solution of the present utility model, a baffle for preventing the filter screen from being trampled is bolted inside the guiding groove, and a plurality of air inlet holes are provided at the top of the baffle.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] In the solution of the present utility model:

[0021] 1. By providing a testing mechanism, the function of testing the torsional strength of the vehicle frame is realized. In the testing mechanism, by rotating the first lead screw, the arc-shaped part is closely attached to the arc-shaped plate, so that one end of the vehicle frame is fixed. Then, by rotating the second lead screw, the first fixing part and the second fixing part are attached, so that the other end of the vehicle frame is fixed. Then, the output end of the torsion testing machine drives the L-shaped plate to rotate, so as to conduct a torsional strength test on the vehicle frame, solving the problem in the prior art that only fatigue tests can be carried out on the vehicle frame, and it is impossible to know how the torsional strength of the vehicle frame is. The torsional strength of the vehicle frame is one of the essential detection steps. If the torsional strength test is missing, there will be potential safety hazards when using the vehicle frame.

[0022] 2. By providing a guiding component, the function of guiding the debris generated by the vehicle frame with unqualified torsional strength is realized. In the guiding component, the exhaust fan operates to guide the gas on the top of the bottom plate. When the experiment fails and the spray coating on the vehicle frame produces cracks and the coating scatters everywhere, the coating fragments will move along with the gas into the guiding groove, thus preventing the influence on the test viewing, solving the problem in the prior art that if the torsional strength of the vehicle frame is unqualified, the vehicle frame may be damaged, and then debris may be generated at the welded joints on the vehicle frame and scatter everywhere, thus affecting the normal viewing of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a vehicle frame torsional strength test platform provided by the present utility model;

[0024] Figure 2 is a schematic structural diagram of a guiding component of a vehicle frame torsional strength test platform provided by the present utility model;

[0025] Figure 3 is a three-dimensional sectional view of a left view of a vehicle frame torsional strength test platform provided by the present utility model;

[0026] Figure 4 is a schematic structural diagram of a testing mechanism of a vehicle frame torsional strength test platform provided by the present utility model;

[0027] Figure 5 The enlarged view of part A in the frame torsion strength test platform provided by the present utility model Figure 4 ;

[0028] Figure 6 The enlarged view of part B in the frame torsion strength test platform provided by the present utility model Figure 4 ;

[0029] Reference signs in the figure:

[0030] 1. Bottom plate; 2. Frame; 3. Testing mechanism; 4. Guiding component; 5. Baffle plate; 6. Top plate; 7. Switching door; 8. Tempered glass plate; 9. Lighting lamp; 10. Protection plate; 11. Support leg; 12. Rectangular plate; 13. Threaded groove; 14. Baffle; 15. Air inlet hole; 301. Torsion testing machine; 302. Connecting rod; 303. L-shaped plate; 304. Arc part; 305. Arc plate; 306. Extension plate; 307. First lead screw; 308. Fixing plate; 309. First fixing part; 310. Second fixing part; 311. Second lead screw; 401. Guiding groove; 402. Filter screen; 403. Exhaust fan Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model

[0032] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other

[0034] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings

[0035] Such as Figures 1-6As shown in the figure, this embodiment proposes a frame torsional strength test platform, including a bottom plate 1 and a frame 2. The frame 2 is arranged inside the bottom plate 1. A test mechanism 3 for performing torsional strength tests on the electric vehicle frame 2 is provided on the top of the bottom plate 1. A guiding component 4 for preventing the fracture of the welded joints of the frame 2 from causing debris to fly around when the test fails is provided at the bottom of the bottom plate 1.

[0036] The test mechanism 3 includes a torsion testing machine 301, a connecting rod 302, an L-shaped plate 303, an arc portion 304, an arc plate 305, an extension plate 306, a first lead screw 307, a fixing plate 308, a first fixing portion 309, a second fixing portion 310, and a second lead screw 311. The torsion testing machine 301 is fixedly connected to the top of the bottom plate 1. The connecting rod 302 is fixedly connected to the output end of the torsion testing machine 301. The L-shaped plate 303 is welded to one end of the connecting rod 302. The arc portion 304 is welded to the side wall of the L-shaped plate 303. The arc plate 305 is arranged on one side of the arc portion 304. The extension plate 306 is welded to the side wall of the arc plate 305. The first lead screw 307 is rotatably connected to the side wall of the L-shaped plate 303. The fixing plate 308 is fixedly connected to the top of the bottom plate 1. The first fixing portion 309 is welded to the top of the fixing plate 308. The second fixing portion 310 is arranged above the first fixing portion 309. The second lead screw 311 is rotatably connected to the top of the first fixing portion 309. One end of the first lead screw 307 is threadedly connected to the extension plate 306. One end of the second lead screw 311 is threadedly connected to the second fixing portion 310. When in use, the cooperation of the L-shaped plate 303, the arc portion 304, the arc plate 305, the extension plate 306, and the first lead screw 307 can fix one end of the frame 2. Then, the cooperation of the first fixing portion 309, the second fixing portion 310, and the second lead screw 311 is used to fix the other end of the frame 2. Then, starting the torsion testing machine 301 can perform the torsional strength test on the frame 2.

[0037] As Figure 3 shown in the figure, considering that the welded joints on the frame 2 may break due to experimental failure, resulting in debris flying around, the guiding component 4 includes a guiding groove 401, a filter screen 402, and an exhaust fan 403. The guiding groove 401 is opened on the top of the bottom plate 1. The filter screen 402 is bolted to the inside of the guiding groove 401. The exhaust fan 403 is bolted to the bottom of the bottom plate 1. The input end of the exhaust fan 403 is communicated with the guiding groove 401. If the frame 2 is unqualified, it will break, and the spray coating at the fracture may fly around. At this time, the exhaust fan 403 will guide the air and the coating to prevent the coating from flying around and affecting the viewing of the test process.

[0038] As Figure 1As shown, considering that some large fragments will fly around, a plurality of baffle plates 5 are fixedly connected to the outer wall of the bottom plate 1, and a top plate 6 is fixedly connected to the top of the baffle plate 5. When the torsional strength of the frame 2 is unqualified, some large debris will scatter from the fracture of the frame 2. At this time, the baffle plate 5 and the top plate 6 can block the debris, thereby preventing safety accidents.

[0039] As Figure 1 shown, considering that it is inconvenient to observe the test process, a switch door 7 for improving the safety of the device is hinged on the side wall of the baffle plate 5, and a tempered glass plate 8 for facilitating the observation of the test situation is arranged on the side wall of the switch door 7. During use, the user can observe the values displayed on the torsion testing machine 301 through the tempered glass plate 8, so as to understand whether the torsional strength of the frame 2 is qualified.

[0040] As Figure 3 shown, considering that the light at the top of the bottom plate 1 is dim, a lighting lamp 9 is arranged at the bottom of the top plate 6, and a protective plate 10 is arranged outside the lighting lamp 9. The top of the protective plate 10 is fixedly connected to the bottom of the top plate 6. The protective plate 10 is made of tempered glass. During use, the lighting lamp 9 can illuminate the cavity formed between the bottom plate 1, the baffle plate 5 and the top plate 6, which is convenient for the user to observe the values on the torsion testing machine 301.

[0041] As Figure 1 shown, considering that the stability of the bottom plate 1 is poor, support legs 11 for improving the stability of the bottom plate 1 are bolted to the bottom of the bottom plate 1. A rectangular plate 12 is welded to the bottom of the support legs 11, and a threaded groove 13 is opened at the top of the rectangular plate 12. During use, external bolts are sequentially screwed into the threaded groove 13 and the ground to fix the device and prevent the device from shaking during the test.

[0042] As Figure 1 shown, considering that workers will step on the filter screen 402, a baffle plate 14 for preventing the filter screen 402 from being stepped on is bolted inside the guide groove 401, and a plurality of air inlets 15 are opened at the top of the baffle plate 14. During use, the baffle plate 14 can prevent the filter screen 402 from being directly stepped on, and at the same time, the air inlets 15 can prevent the baffle plate 14 from blocking the gas from entering the input end of the exhaust fan 403.

[0043] Specifically, the torsion testing machine 301 is a prior art and will not be elaborated here. When the vehicle frame torsion strength test platform is in use: the user places the vehicle frame 2 on the top of the bottom plate 1, then rotates the first lead screw 307 to make the extension plate 306 drive the arc plate 305 to fit with the arc portion 304, thereby fixing one end of the vehicle frame 2. Then rotates the second lead screw 311 to make the second fixing portion 310 fit with the first fixing portion 309, thereby fixing the other end of the vehicle frame 2. At this time, close the switch door 7, then connect the torsion testing machine 301, the exhaust fan 403 and the lighting lamp 9 to an external power source, and then turn on the lighting lamp 9, the torsion testing machine 301 and the exhaust fan 403. At this time, the output end of the torsion testing machine 301 rotates, thereby driving the vehicle frame 2 located between the arc portion 304 and the arc plate 305 to rotate. Also, because the other end of the vehicle frame 2 is fixed by the first fixing portion 309 and the second fixing portion 310, the torsion strength of the vehicle frame 2 can be tested at this time. At this time, the user can observe the value displayed on the torsion testing machine 301 through the tempered glass plate 8 to make an evaluation. If the torsion strength of the vehicle frame 2 is unqualified and the connection of the vehicle frame 2 breaks, some debris may be generated at the break. At this time, the exhaust fan 403 will guide the debris located above the bottom plate 1 to prevent the debris from flying around and affecting the user's observation of the data on the torsion testing machine 301.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A vehicle frame torsional strength test platform, comprising a bottom plate (1) and a vehicle frame (2), characterized in that, The frame (2) is arranged inside the bottom plate (1). A testing mechanism (3) for conducting a torsional strength test on the electric vehicle frame (2) is arranged on the top of the bottom plate (1), and a guiding assembly (4) for preventing debris from flying everywhere due to the fracture of the welded joints of the frame (2) in case of test failure is arranged at the bottom of the bottom plate (1). The testing mechanism (3) includes a torsion testing machine (301), a connecting rod (302), an L-shaped plate (303), an arc portion (304), an arc plate (305), an extension plate (306), a first lead screw (307), a fixing plate (308), a first fixing portion (309), a second fixing portion (310), and a second lead screw (311). The torsion testing machine (301) is fixedly connected to the top of the bottom plate (1), the connecting rod (302) is fixedly connected to the output end of the torsion testing machine (301), the L-shaped plate (303) is welded to one end of the connecting rod (302), the arc portion (304) is welded to the side wall of the L-shaped plate (303), the arc plate (305) is arranged on one side of the arc portion (304), the extension plate (306) is welded to the side wall of the arc plate (305), the first lead screw (307) is rotatably connected to the side wall of the L-shaped plate (303), the fixing plate (308) is fixedly connected to the top of the bottom plate (1), the first fixing portion (309) is welded to the top of the fixing plate (308), the second fixing portion (310) is arranged above the first fixing portion (309), the second lead screw (311) is rotatably connected to the top of the first fixing portion (309), one end of the first lead screw (307) is threadedly connected to the extension plate (306), and one end of the second lead screw (311) is threadedly connected to the second fixing portion (310).

2. The torsional strength test platform for a vehicle frame according to claim 1, characterized in that, The guiding assembly (4) includes a guiding groove (401), a filter screen (402), and an exhaust fan (403). The guiding groove (401) is opened on the top of the bottom plate (1), the filter screen (402) is bolted inside the guiding groove (401), the exhaust fan (403) is bolted to the bottom of the bottom plate (1), and the input end of the exhaust fan (403) is communicated with the guiding groove (401).

3. A frame torsional strength test platform according to claim 1, characterized in that, A plurality of partition plates (5) are fixedly connected to the outer wall of the bottom plate (1), and a top plate (6) is fixedly connected to the top of the partition plates (5).

4. A frame torsional strength test platform according to claim 3, characterized in that, A switch door (7) for improving the safety of the device is hinged on the side wall of the partition plate (5), and a toughened glass plate (8) for facilitating the observation of the test situation is arranged on the side wall of the switch door (7).

5. A frame torsional strength test platform according to claim 3, characterized in that, A lighting lamp (9) is arranged at the bottom of the top plate (6), a protective plate (10) is arranged outside the lighting lamp (9), the top of the protective plate (10) is fixedly connected to the bottom of the top plate (6), and the protective plate (10) is made of toughened glass.

6. The torsional strength test platform for a vehicle frame according to claim 1, characterized in that, Support legs (11) for improving the stability of the bottom plate (1) are bolted to the bottom of the bottom plate (1), a rectangular plate (12) is welded to the bottom of the support legs (11), and a threaded groove (13) is opened on the top of the rectangular plate (12).

7. A vehicle frame torsional strength test platform according to claim 2, characterized in that, A baffle (14) for preventing the filter screen (402) from being trampled is bolted inside the guiding groove (401), and a plurality of air inlets (15) are formed in the top of the baffle (14).

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