A tension testing device for automobile battery handle

Abstract

This application relates to the technical field of handle testing, and more particularly to a tensile testing device for a car battery handle. It includes a test frame comprising a horizontally positioned base for supporting the battery, a top rod above the base, a guide rail on the top rod, a slider slidably connected to the guide rail, and a tension cylinder hinged to the lower surface of the slider. The rotation plane of the tension cylinder is the same as the rotation plane of the handle. The bottom of the tension cylinder is connected to the handle. During the application of force to the handle, the tension cylinder deflects due to changes in the applied force angle before reaching a predetermined maximum force value. After the force is applied, the slider drives the tension cylinder to slide, moving towards its initial position. This completes one cycle. Compared to directly testing the sample handle in an upright state, this device achieves an automatic cyclic fatigue test simulating real-world usage scenarios. The test data is more realistic and consistent with actual usage scenarios.

Description

Technical Field

[0001] This application relates to the technical field of handle testing, and in particular to a tensile testing device for automobile battery handles. Background Technology

[0002] Battery handles are the main force-applying components used by users to pull, tug, or lift batteries during transport. If the handle is of poor quality, it may cause the battery to break suddenly during transport, resulting in the battery being damaged.

[0003] Therefore, it is necessary to conduct strength fatigue tests on the handles to control their quality. Currently, conventional handle testing mainly involves manual pulling tests, and the main test content is to test the handle's ultimate tensile force.

[0004] In actual use, people typically rotate the handle from a horizontal to a vertical position for carrying. During this process, the handle is subjected to pressure and rotated multiple times. However, current handle testing methods differ significantly from real-world usage scenarios, rendering the data obtained from these tests largely meaningless. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a tensile testing device for automobile battery handles.

[0006] The tensile testing device for automobile battery handles provided in this application adopts the following technical solution: A tensile testing device for a car battery handle includes a test frame, the test frame including a horizontally arranged base for supporting the battery, the test frame also including a top rod located above the base, a guide rail provided on the top rod, a slider slidably connected on the guide rail, a tension cylinder hinged to the lower surface of the slider, the rotation plane of the tension cylinder being the same as the rotation plane of the handle.

[0007] By adopting the above technical solution, the bottom of the tension cylinder is connected to the handle. During the process of applying force to the handle, the tension cylinder will deflect due to the change in the force application angle before reaching the predetermined maximum force value. The slider drives the tension cylinder to slide, gradually reducing the deflection angle of the tension cylinder until the tension cylinder is in a vertical position. At this point, the adjustment is complete, and the tension cylinder applies a predetermined force upward, completing half a cycle. After the force application is completed, the slider drives the tension cylinder to slide towards the initial position, and monitors the force value to a level that only supports the tension of the sample handle. The tension cylinder then deflects, and the extension and retraction of the tension cylinder are adjusted to return it to zero. At this point, one cycle is considered complete. Compared with directly testing the sample handle in an upright state, this achieves an automatic cyclic fatigue test that simulates real-world usage scenarios. The test data is more realistic and consistent with actual usage scenarios.

[0008] Preferably, the guide rail is an electric guide rail, the slider is provided with an angle sensor for monitoring the deflection angle of the tension rod, and the tension cylinder is provided with a pressure sensor for monitoring the tension of the tension cylinder. The angle sensor and the pressure sensor are electrically connected to the electric guide rail through a controller.

[0009] By employing the above technical solution, the tension cylinder deflects according to changes in the applied force angle. The angle sensor receives the signal and drives the guide rail to move, causing the tension cylinder to move towards the zero position. Through the cooperation of the angle sensor and the electric guide rail, the device itself can automatically complete a full cycle test, making it convenient to use.

[0010] Preferably, the lower end of the pull cylinder is provided with a simulated handle for connecting to the battery handle. The simulated handle includes a connecting part connected to the battery handle and a force-applying part connected to the pull cylinder. The inner wall of the connecting part is wrapped around the outside of the battery handle, and the outer wall of the connecting part is provided with a hook for connecting to the force-applying part. The force-applying part is annular, with one end connected to the bottom of the pull cylinder and the other end connected to the hook.

[0011] By adopting the above technical solution, the pull cylinder is connected to the battery handle through a simulated handle, making the connection more secure and ensuring greater stability during the test.

[0012] Preferably, a movable frame is horizontally slidably connected to the base, the battery is placed on the movable frame, and the moving direction of the movable frame is perpendicular to the moving direction of the slider.

[0013] By adopting the above technical solution, the handles of batteries of different sizes are located in different positions, and the contact points between the pull cylinder and the handle during the test are also different. The moving frame can drive the battery to slide, thereby adjusting the position of the battery, which facilitates testing and increases the applicability of this device.

[0014] Preferably, the outer wall of the connecting part is provided with a strip-shaped sliding groove, the opening direction of the sliding groove is consistent with the sliding direction of the moving frame, and the end of the hook away from the force application part is slidably connected in the sliding groove.

[0015] By adopting the above technical solution, the hook slides in the sliding groove, which can change the position of the hook applying force to the connection part, thereby enabling force testing at multiple positions and comprehensively testing the actual performance of the handle.

[0016] Preferably, the connecting part includes an inner core and an outer shell. The inner core is wrapped around the battery handle, and the outer shell is located outside the inner core. A gap is left between the outer shell and the inner core to form a sliding space. The sliding groove is connected to the sliding space. The end of the hook is fixed with a sleeve that is slidably connected in the sliding space. The sleeve is wrapped around the outer wall of the inner core.

[0017] By adopting the above technical solution, the sleeve slides within the sliding space, thereby changing the contact position between the sleeve and the inner core, that is, changing the position of the force applied by the sleeve to the inner core. The sleeve has a better wrapping effect on the inner core, the connection is more stable, and the force is applied more evenly.

[0018] Preferably, a plurality of rollers are provided between the outer wall of the inner core and the inner wall of the outer shell, and the two sides of the sleeve abut against the rollers.

[0019] By adopting the above technical solution, the roller reduces the friction between the sleeve and the connecting part, making it easier for the sleeve to slide and thus adjust its position.

[0020] Preferably, the test frame includes vertically arranged vertical rods on both sides of the top rod, and the top rod is vertically slidably connected to the vertical rods.

[0021] By adopting the above technical solution, the position and height of the push rod can be adjusted to adapt to various lengths of pull cylinders to meet the testing requirements of different models of battery handles, thereby increasing the applicability of this application.

[0022] In summary, this application includes the following beneficial technical effects: Compared to testing by directly placing the sample handle in an upright position, this application achieves an automated cyclic fatigue test that simulates real-world usage scenarios, resulting in more realistic and effective test data. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a schematic diagram of the simulated handle structure in the embodiment; Figure 3 This is a schematic diagram of the internal structure of the connecting part in the embodiment.

[0024] Explanation of reference numerals in the attached figures: 1. Test frame; 11. Base; 12. Top rod; 13. Moving frame; 14. Vertical rod; 2. Guide rail; 21. Slider; 3. Tension cylinder; 4. Simulated handle; 41. Connecting part; 411. Inner core; 412. Outer shell; 413. Sliding groove; 414. Roller; 42. Force application part; 43. Hook; 431. Sleeve; 44. Opening. Detailed Implementation

[0025] The present application will be further described in detail below with reference to all the accompanying drawings.

[0026] Example

[0027] This application discloses a tensile testing device for automobile battery handles, referring to... Figure 1 It can realistically simulate the actual working conditions of battery handles, automatically complete cyclic tensile fatigue tests, and is compatible with the testing of various specifications of battery handles.

[0028] Reference Figure 1 The device includes a test frame 1, which has a horizontally arranged base 11. A movable frame 13 for placing a battery is slidably mounted on the base 11. The battery is placed on the movable frame 13. The sliding direction of the movable frame 13 is perpendicular to the sliding direction of the slider 21. The overall position of the battery can be flexibly adjusted to fit battery handles in different positions, making it convenient for alignment testing.

[0029] Reference Figure 1 The base 11 has vertical rods 14 fixed on both sides, and a top rod 12 is slidably installed between the two vertical rods 14. The top rod 12 can be adjusted up and down along the vertical rods 14 to adjust its height, which can be adapted to pull cylinders 3 of different lengths and battery handles of different heights, effectively expanding the applicability of the device.

[0030] Reference Figure 1 A guide rail 2 is fixedly installed on the top rod 12, preferably an electric guide rail. A slider 21 is slidably connected to the guide rail 2. A pull cylinder 3 is hinged to the lower surface of the slider 21. The rotation plane of the pull cylinder 3 is consistent with the rotation plane of the battery handle to ensure that the applied force angle conforms to the actual use condition.

[0031] Reference Figure 1 An angle sensor for detecting the deflection angle of the tension cylinder 3 is installed on the slider 21. A pressure sensor for real-time monitoring of the tension value is installed on the tension cylinder 3. Both the angle sensor and the pressure sensor are electrically connected to the controller. The controller is synchronously connected to the electric guide rail 2 to realize automated linkage control of the equipment.

[0032] Reference Figure 1 and Figure 2 The lower end of the pull cylinder 3 is equipped with a simulated handle 4, which includes a connecting part 41 and a force-applying part 42 that cooperate with each other. The connecting part 41 has an opening 44 for taking out and removing the battery handle. The connecting part 41 tightly wraps around the outside of the battery handle. The force-applying part 42 has a ring structure, with one end connected to the bottom end of the pull cylinder 3 and the other end having a hook 43 connected to the connecting part 41. The connection is firm and the stability during the test is strong.

[0033] Reference Figures 1 to 3 The connecting part 41 consists of an inner core 411 and an outer shell 412. The inner core 411 is fitted and sleeved on the outside of the battery handle, and the outer shell 412 is located on the outside of the inner core 411. A gap is reserved between the two to form a sliding space. The outer wall of the outer shell 412 has a strip-shaped sliding groove 413 that is consistent with the sliding direction of the movable frame 13. The sliding groove 413 is connected to the sliding space.

[0034] Reference Figures 1 to 3A sleeve 431 is fixed to the end of the hook 43. The sleeve 431 is wrapped around the outer wall of the inner core 411 and can slide within the sliding space and sliding groove 413, allowing for free adjustment of the force application position and enabling multi-point pull force detection of the handle. Several rollers 414 are evenly arranged between the outer wall of the inner core 411 and the inner wall of the outer shell 412. The two sides of the sleeve 431 are in contact with the rollers 414, greatly reducing sliding friction and making the adjustment of the force application position smoother and easier.

[0035] The implementation principle of the tensile testing device for a car battery handle according to this application embodiment is as follows: In actual testing, the battery to be tested is placed stably on the moving frame 13. The lateral position of the battery is adjusted using the moving frame 13. Then, the connecting part 41 of the simulated handle 4 is sleeved on the outside of the battery handle. The sliding sleeve 431 selects the test force application point, and the height of the top rod 12 is adjusted to complete the device clamping. After the device is started, the tension cylinder 3 applies a pulling force to the battery handle through the simulated handle 4. As the pulling force gradually increases to the preset force value, the tension cylinder 3 deflects according to the force state. The angle sensor collects the deflection signal and transmits it to the controller. The controller drives the electric guide rail 2 to move the slider 21 to slide, gradually correcting the angle of the tension cylinder 3 until it is in a vertical state. Then, the tension cylinder 3 applies the set pulling force to complete a half-cycle test. After the force is applied, the controller controls the slider 21 to slide in the opposite direction to reset. The tension cylinder 3 deflects and falls back, and the tension cylinder 3 retracts and resets to the zero position, completing a whole set of tensile cycle tests.

[0036] This device abandons the traditional vertical static testing method and automatically simulates the real-world usage scenario of manually lifting and releasing the handle. It can continuously conduct multiple cyclic fatigue tests, and the test data such as tensile performance and fatigue durability obtained are accurately consistent with the actual application scenario. It has a high degree of automation, is easy to operate, and has strong versatility, which can meet the tensile testing needs of various car battery handles.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pull test device for automobile battery handle, comprising a test frame (1), characterized in that: The test frame (1) includes a horizontally arranged base (11) for supporting the battery. The test frame (1) also includes a top rod (12) located above the base (11). A guide rail (2) is provided on the top rod (12). A slider (21) is slidably connected on the guide rail (2). A tension cylinder (3) is hinged to the lower surface of the slider (21). The rotation plane of the tension cylinder (3) is the same as the rotation plane of the handle.

2. The pull test device for an automobile battery handle according to claim 1, characterized in that: The guide rail (2) is an electric guide rail. The slider (21) is equipped with an angle sensor for monitoring the deflection angle of the tension rod. The tension cylinder (3) is equipped with a pressure sensor for monitoring the tension of the tension cylinder (3). The angle sensor and the pressure sensor are electrically connected to the electric guide rail (2) through a controller.

3. The pull test device for an automobile battery handle according to claim 1, characterized in that: The lower end of the pull cylinder (3) is provided with a simulated handle (4) for connecting to the battery handle. The simulated handle (4) includes a connecting part (41) connected to the battery handle and a force-applying part (42) connected to the pull cylinder (3). The inner wall of the connecting part (41) is wrapped around the outside of the battery handle. The outer wall of the connecting part (41) is provided with a hook (43) for connecting to the force-applying part (42). The force-applying part (42) is ring-shaped, with one end connected to the bottom of the pull cylinder (3) and the other end connected to the hook (43).

4. The pull test device for an automobile battery handle according to claim 3, characterized in that: A movable frame (13) is horizontally slidably connected to the base (11), and the battery is placed on the movable frame (13). The moving direction of the movable frame (13) is perpendicular to the moving direction of the slider (21).

5. The pull test device for an automotive battery handle according to claim 4, wherein: The outer wall of the connecting part (41) is provided with a strip-shaped sliding groove (413). The opening direction of the sliding groove (413) is consistent with the sliding direction of the moving frame (13). The end of the hook (43) away from the force application part (42) is slidably connected in the sliding groove (413).

6. A pull test device for an automotive battery handle as defined in claim 5, wherein: The connecting part (41) includes an inner core (411) and an outer shell (412). The inner core (411) is wrapped around the battery handle. The outer shell (412) is located outside the inner core (411). A gap is left between the outer shell (412) and the inner core (411) to form a sliding space. The sliding groove (413) is connected to the sliding space. The end of the hook (43) is fixed with a sleeve (431) that is slidably connected in the sliding space. The sleeve (431) is wrapped around the outer wall of the inner core (411).

7. The pull test device for an automobile battery handle according to claim 6, characterized in that: A plurality of rollers (414) are provided between the outer wall of the inner core (411) and the inner wall of the outer shell (412), and the two sides of the sleeve (431) abut against the rollers (414).

8. The pull test device for an automotive battery handle according to claim 1, characterized in that: The test frame (1) includes vertical rods (14) arranged vertically on both sides of the top rod (12), and the top rod (12) and the vertical rods (14) are vertically slidably connected.

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