Fatigue testing machine for whole electric scooter body

Abstract

The invention discloses an electric scooter whole vehicle body fatigue testing machine, which is used for detecting the fatigue strength of a to-be-detected part, and comprises a motion assembly suitable for driving a scooter body to move and braking the scooter body, a testing assembly suitable for testing the fatigue strength of the to-be-detected part, and a testing assembly suitable for testing the fatigue strength of the to-be-detected part, the first loading assembly is used for loading the vehicle body; the second loading assembly is used for loading the vehicle body operating lever; and the control assembly is electrically connected with the motion assembly and the second loading assembly, and the control assembly is suitable for controlling the load applied by the second loading assembly to the vehicle body operating lever according to the motion acceleration of the to-be-detected piece. According to the whole electric scooter body fatigue testing machine provided by the embodiment of the invention, the control assembly is electrically connected with the second loading assembly, so that the control assembly can control the second loading assembly to apply different loads to the scooter body operating lever according to different motion accelerations, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This invention relates to the field of testing technology, and in particular to a fatigue testing machine for the entire body of an electric scooter. Background Technology

[0002] Currently, most common fatigue testing machines for electric scooters in China are designed according to national standards.<GB / T 42825-2023> The overall vehicle fatigue strength was designed according to section 6.4.8. The maximum load specified by the manufacturer was placed and fixed at the center of the pedals of the test vehicle. A 5kg load was applied to the center of each of the two handlebar grips. The rear wheel of the electric scooter was fixed, and the front wheel was placed on a roller with a diameter of not less than 700mm. Three bosses with a height of 15mm (top width 20mm, 17° uphill, 45° downhill) were evenly installed on the surface of the roller. The roller traveled at a constant speed of 2m / s for 50km. After the test, a visual inspection was conducted on all parts of the test vehicle for any abnormalities.

[0003] Public opinion analysis revealed a problem with the electric scooter's control stick (stick) breaking. Analysis of the national standard testing method showed that applying a 5kg load to the center of each of the two handlebar grips did not accurately simulate the maximum torque exerted on the control stick during riding, indicating room for improvement. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a fatigue testing machine for the entire body of an electric scooter. The control component in this machine can control a second loading component to apply different loads to the scooter's control lever according to different motion accelerations, thereby improving the accuracy and reliability of the test results and ultimately enhancing the safety of the tested component.

[0005] According to an embodiment of the present invention, an electric scooter body fatigue testing machine is used to test the fatigue strength of a component under test. The component under test includes a vehicle body and a control lever. The electric scooter body fatigue testing machine includes: a motion component for supporting the component under test and adapted to drive the vehicle body to move and brake the vehicle body; a first loading component for loading the vehicle body; a second loading component for loading the control lever; and a control component electrically connected to the motion component and the second loading component, and adapted to control the load applied by the second loading component to the control lever according to the motion acceleration of the component under test.

[0006] According to an embodiment of the present invention, an electric scooter body fatigue testing machine can simulate the driving state of the test component by setting a motion component to drive the vehicle body to move or brake the vehicle body. The first loading component and the second loading component can respectively load the vehicle body and the vehicle body control lever to simulate the stress state of the test component, making the state of the test component closer to the actual working state. The control component is electrically connected to the motion component and the second loading component respectively, so that the control component can control the movement of the vehicle body through the motion component, and the control component can control the second loading component to apply different loads to the vehicle body control lever according to different motion accelerations, so as to improve the accuracy and reliability of the test results, thereby improving the safety of the test component in use.

[0007] According to some embodiments of the present invention, the electric scooter body fatigue testing machine includes two grip handles on the vehicle control lever, and the second loading component includes two loading cylinders, with the output ends of the two loading cylinders respectively connected to the two grip handles.

[0008] According to some embodiments of the present invention, in an electric scooter body fatigue testing machine, the output end of the loading cylinder is provided with an output sleeve, which is sleeved over the grip handle; wherein, the output sleeve is adapted to apply a load in a first direction to the grip handle when the motion acceleration is positive, and to apply a load in a second direction to the grip handle when the motion acceleration is negative, wherein the first direction is opposite to the second direction.

[0009] According to some embodiments of the present invention, the electric scooter body fatigue testing machine includes a motion component and a transmission belt, wherein the drive component is used to drive the transmission belt to rotate continuously; the vehicle body is provided with wheels, and the wheels are supported by the transmission belt in a rolling manner.

[0010] According to some embodiments of the present invention, the electric scooter body fatigue testing machine includes a motion component comprising two pulleys spaced apart, a transmission belt wrapped around the two pulleys, one of the two pulleys being a driving pulley and the other a driven pulley; the output shaft of the drive member is poweredly connected to the driving pulley and is adapted to drive the transmission belt to rotate via the driving pulley.

[0011] According to some embodiments of the present invention, in an electric scooter body fatigue testing machine, the output shaft of the drive unit is provided with a first transmission member, the drive wheel is equipped with a second transmission member, the first transmission member meshes with the second transmission member, and the axis of the drive wheel is perpendicular to the axis of the output shaft of the drive unit.

[0012] According to some embodiments of the present invention, in an electric scooter body fatigue testing machine, the transmission belt has a plurality of protrusions and a plurality of recesses, and the plurality of protrusions and the plurality of recesses are spaced apart on the surface of the transmission belt.

[0013] According to some embodiments of the present invention, in an electric scooter body fatigue testing machine, the second loading component is provided with a pressure sensor, which is used to detect the load applied by the second loading component to the vehicle control lever.

[0014] According to some embodiments of the present invention, the electric scooter whole vehicle fatigue testing machine includes a first loading component comprising a counterweight frame and a plurality of counterweight blocks, the counterweight frame being adapted to support the vehicle body, and the plurality of counterweight blocks being adapted to be selectively disposed on the counterweight frame.

[0015] According to some embodiments of the present invention, the electric scooter body fatigue testing machine includes a counterweight frame comprising a counterweight base, a mounting rod, and a counterweight rod. The counterweight base is supported on the vehicle body. The mounting rod extends vertically and its lower end is connected to the counterweight base. The counterweight rod extends horizontally, and the middle part of the counterweight rod intersects and connects with the middle part of the mounting rod. The counterweight block is adapted to be hung on the counterweight rod.

[0016] According to some embodiments of the present invention, the electric scooter whole vehicle fatigue testing machine further includes a mounting frame, wherein the first loading component, the second loading component and the motion component are respectively mounted on the mounting frame.

[0017] According to some embodiments of the present invention, the electric scooter body fatigue testing machine has a limiting groove provided on the mounting frame, at least a portion of the first loading component passes through the limiting groove, and the through direction of the limiting groove is perpendicular to the loading direction of the first loading component on the vehicle body.

[0018] According to some embodiments of the present invention, the electric scooter whole vehicle fatigue testing machine includes a control component comprising a display and a controller. The controller is adapted to control the movement of the motion component to drive the vehicle body. The display is electrically connected to the controller and has a display area.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1This is a schematic diagram of the structure of an electric scooter body fatigue testing machine according to an embodiment of the present invention;

[0022] Figure 2 This is a partial cross-sectional view of an electric scooter body fatigue testing machine according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the counterweight frame according to an embodiment of the present invention;

[0024] Figure 4 This is a partial schematic diagram of an electric scooter body fatigue testing machine according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a transmission belt according to an embodiment of the present invention.

[0026] Figure label:

[0027] Electric scooter whole-vehicle fatigue testing machine 100, parts to be tested 200.

[0028] Motion assembly 1, drive component 11, first transmission component 111, transmission belt 12, protrusion 121, recess 122, pulley 13, drive wheel 131, second transmission component 1311, driven wheel 132, first loading assembly 2, counterweight frame 21, counterweight base 211, mounting rod 212, counterweight rod 213, second loading assembly 3, loading electric cylinder 31, output sleeve 311, control assembly 4, display 41, display area 411, controller 42, mounting bracket 5, limit through slot 51.

[0029] Vehicle body 201, vehicle control lever 202, handle 2021, wheel 203. Detailed Implementation

[0030] Embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The following is for reference. Figures 1-5 The electric scooter body fatigue testing machine 100 according to an embodiment of the present invention is described. By electrically connecting the control component 4 to the motion component 1 and the second loading component 3 respectively, the control component 4 can control the movement of the vehicle body 201 through the motion component 1, and the control component 4 can control the second loading component 3 to apply different loads to the vehicle body control lever 202 according to different motion accelerations, so as to improve the accuracy and reliability of the test results, and thus improve the safety of the test component 200.

[0034] like Figure 1 As shown, according to an embodiment of the present invention, an electric scooter whole vehicle body fatigue testing machine 100 is used to test the fatigue strength of a test component 200. The test component 200 includes a vehicle body 201 and a vehicle body control lever 202. The electric scooter whole vehicle body fatigue testing machine 100 includes: a motion component 1, a first loading component 2, a second loading component 3, and a control component 4.

[0035] Specifically, the test piece 200 can be an electric scooter. The electric scooter whole-vehicle fatigue testing machine 100 can be used to test the fatigue strength of the electric scooter to improve the safety of its use. The test piece 200 includes a vehicle body 201 and a vehicle body control lever 202. The vehicle body 201 is used to carry users or goods to meet user needs. The vehicle body control lever 202 is used to control the direction of travel of the vehicle body 201 to realize the steering function of the electric scooter. The electric scooter whole-vehicle fatigue testing machine 100 includes: a motion component 1, a first loading component 2, a second loading component 3, and a control component 4. The motion component 1 can drive the test piece 200 to move to simulate the state of the test piece 200 in motion. The first loading component 2 and the second loading component 3 can load the test piece 200 to simulate the force situation of the test piece 200 in motion. The control component 4 is used to control the components connected to it.

[0036] The motion component 1 is used to support the test piece 200 and is adapted to move the vehicle body 201 and brake the vehicle body 201; the first loading component 2 is used to load the vehicle body 201; the second loading component 3 is used to load the vehicle body control lever 202; the control component 4 is electrically connected to the motion component 1 and the second loading component 3 respectively, and the control component 4 is adapted to control the load applied by the second loading component 3 to the vehicle body control lever 202 according to the motion acceleration of the test piece 200.

[0037] In other words, the motion component 1 can be positioned below the component to be tested 200 to support it. The motion component 1 can also press against the component to be tested 200, allowing it to move the vehicle body 201 or brake it. The first loading component 2 can load the vehicle body 201, simulating the load-bearing state of the component to be tested 200, i.e., the component to be tested 200 carrying a user or goods. The second loading component 3 can load the vehicle body control lever 202, simulating the force state of the vehicle body control lever 202. This makes the state of the component to be tested 200 closer to its actual working state, improving the accuracy and reliability of the test results.

[0038] Furthermore, by electrically connecting the control component 4 to the motion component 1 and the second loading component 3 respectively, the control component 4 can be electrically connected to the motion component 1, thereby enabling the control component 4 to control the motion component 1. In turn, the control component 4 can control the motion component 1 to move the vehicle body 201 or brake the vehicle body 201. At the same time, the control component 4 can be electrically connected to the second loading component 3, thereby enabling the control component 4 to control the second loading component 3 to change the load applied by the second loading component 3 to the vehicle body control lever 202.

[0039] Furthermore, the control component 4 is adapted to control the load applied to the vehicle control lever 202 by the second loading component 3 according to the motion acceleration of the test piece 200. That is, the test piece 200 may have different motion accelerations when it moves. When the motion acceleration of the test piece 200 is different, the control component 4 can control the second loading component 3 to apply different loads to the vehicle control lever 202 according to the different motion accelerations. This allows the electric scooter whole vehicle fatigue testing machine 100 to more accurately simulate the force state of the vehicle control lever 202 under different motion accelerations, which can improve the accuracy and reliability of the test results. Moreover, the method of controlling the motion component 1 and the second loading component 3 by the control component 4 can reduce the error of manual operation and further improve the accuracy and reliability of the test results.

[0040] According to an embodiment of the present invention, the electric scooter body fatigue testing machine 100 can drive the vehicle body 201 to move or brake the vehicle body 201 to simulate the driving state of the test piece 200. The first loading component 2 and the second loading component 3 can respectively load the vehicle body 201 and the vehicle body control lever 202 to simulate the stress state of the test piece 200, making the state of the test piece 200 closer to the actual working state. The control component 4 is electrically connected to the motion component 1 and the second loading component 3 respectively, so that the control component 4 can control the movement of the vehicle body 201 through the motion component 1, and the control component 4 can control the second loading component 3 to apply different loads to the vehicle body control lever 202 according to different motion accelerations, so as to improve the accuracy and reliability of the test results, thereby improving the safety of the test piece 200.

[0041] In some embodiments, the vehicle control lever 202 includes two grip handles 2021, and the second loading component 3 includes two loading cylinders 31, with the output ends of the two loading cylinders 31 respectively connected to the two grip handles 2021.

[0042] Specifically, the vehicle control lever 202 is connected to the vehicle body 201 and is used to control the direction of travel of the test piece 200. The vehicle control lever 202 includes two grip handles 2021, which provide a grip position for the user to apply force to the grip handles 2021 to control the vehicle control lever 202, thereby controlling the direction of travel of the test piece 200 and realizing the steering function of the test piece 200. At the same time, the second loading component 3 is used to load the vehicle control lever 202. The second loading component 3 includes two loading electric cylinders 31, which can load the vehicle control lever 202 together, thereby improving the reliability of loading the vehicle control lever 202 using the second loading component 3.

[0043] Furthermore, by connecting the output terminals of the two loading cylinders 31 to the two grip handles 2021 respectively, the two loading cylinders 31 and the two grip handles 2021 can be connected one-to-one, so that each loading cylinder 31 can load the grip handle 2021 connected to it. That is, for each grip handle 2021, a loading cylinder 31 is provided to load it, which can improve the reliability of the loading cylinder 31 loading the grip handle 2021, and further improve the reliability of the second loading component 3 loading the vehicle control lever 202.

[0044] It should be noted that when testing the test piece 200 in different states, the loads of the two loading cylinders 31 can be the same or different to adapt to different testing requirements, thereby increasing the applicability of the electric scooter whole vehicle fatigue testing machine 100.

[0045] In some embodiments, the output end of the loading cylinder 31 is provided with an output sleeve 311, which is sleeved on the outside of the grip handle 2021; wherein, the output sleeve 311 is adapted to apply a load in a first direction to the grip handle 2021 when the motion acceleration is positive, and to apply a load in a second direction to the grip handle 2021 when the motion acceleration is negative, wherein the first direction is opposite to the second direction.

[0046] Specifically, the loading cylinder 31 is connected to the grip handle 2021 to load the grip handle 2021. An output sleeve 311 is provided at the output end of the loading cylinder 31, which is the end of the loading cylinder 31 facing the grip handle 2021. This allows the output sleeve 311 to be fitted over the grip handle 2021, thus achieving the connection between the loading cylinder 31 and the grip handle 2021. This fitted connection method ensures the reliability of the connection between the loading cylinder 31 and the grip handle 2021, thereby improving the reliability of the loading cylinder 31 loading the grip handle 2021.

[0047] The output sleeve 311 can apply a load in a first direction to the grip handle 2021 when the motion acceleration is positive. When the motion acceleration is positive, the vehicle body 201 is in an accelerating state towards the front of the test object 200. At this time, the vehicle control lever 202 has an inertial force towards the rear of the test object 200. The output sleeve 311 can then apply a load towards the rear of the vehicle to the grip handle 2021 to simulate the inertial force of the vehicle control lever 202 towards the rear of the test object 200. That is, the first direction is towards the rear of the test object 200. Conversely, the output sleeve... When the motion acceleration is negative, the tube 311 can apply a load toward the grip handle 2021 in the second direction. When the motion acceleration is negative, the vehicle body 201 is in a decelerating state toward the rear of the test piece 200. At this time, the vehicle body control lever 202 has an inertial force toward the front of the test piece 200. At this time, the output sleeve 311 can apply a load toward the front of the vehicle to the grip handle 2021 to simulate the inertial force of the vehicle body control lever 202 toward the front of the test piece 200. That is, the second direction is the direction toward the front of the test piece 200, and the first direction is opposite to the second direction.

[0048] In some embodiments, the motion component 1 includes a drive member 11 and a transmission belt 12, the drive member 11 being used to drive the transmission belt 12 to rotate continuously; the vehicle body 201 is provided with wheels 203, the wheels 203 being rolled and supported on the transmission belt 12.

[0049] Specifically, the motion component 1 is used to support the test piece 200 and can drive the vehicle body 201 to move and brake under the action of the control component 4. The motion component 1 includes a drive component 11 and a transmission belt 12. The drive component 11 can be used to provide driving force, and the transmission belt 12 can be used to support the test piece 200. The drive component 11 can be used to drive the transmission belt 12 to rotate continuously. The drive component 11 can be connected to the transmission belt 12 so that the drive component 11 can drive the transmission belt 12 to rotate to drive the vehicle body 201 to move and brake. The drive component 11 can be constructed as a drive motor. Using the drive motor to provide driving force and drive the vehicle body 201 to move can avoid errors caused by manual operation and improve the accuracy and reliability of the test results.

[0050] Furthermore, the vehicle body 201 is equipped with wheels 203, and the wheels 203 are located at the bottom of the test piece 200. By rolling the wheels 203 on the transmission belt 12, the transmission belt 12 can support the test piece 200 at the bottom of the test piece 200, and the wheels 203 can be in abutting contact with the transmission belt 12. When the transmission belt 12 rotates under the action of the drive member 11, it can drive the wheels 203 to roll, thereby realizing the movement of the vehicle body 201 to simulate the driving state of the test piece 200. Moreover, by setting the transmission belt 12 to drive the movement of the vehicle body 201, the vehicle body 201 can always remain in place, which can reduce the space occupied by the electric scooter whole vehicle fatigue testing machine 100 and facilitate the setting of the electric scooter whole vehicle fatigue testing machine 100.

[0051] In some embodiments, the motion component 1 includes two pulleys 13 spaced apart, and a transmission belt 12 is wound around the two pulleys 13. One of the two pulleys 13 is a driving pulley 131 and the other is a driven pulley 132. The output shaft of the drive member 11 is poweredly connected to the driving pulley 131 and is adapted to drive the transmission belt 12 to rotate through the driving pulley 131.

[0052] Specifically, the pulley 13 can be used to support the transmission belt 12 to improve the reliability of the transmission belt 12's operation. Since the motion assembly 1 has two pulleys 13, both pulleys 13 can jointly support the transmission belt 12, further improving the reliability of this support. Furthermore, by spacing the two pulleys 13 apart, they can contact different positions on the transmission belt 12, allowing them to simultaneously support the transmission belt 12 from two different locations, thus improving the stability of the support. Moreover, by wrapping the transmission belt 12 around the two pulleys 13, both pulleys 13 are positioned inside the transmission belt 12, supporting it from within, further enhancing the reliability of the support.

[0053] Among them, such as Figure 1 As shown, the pulley 13 is constructed as a columnar body, which allows the pulley 13 to have a certain length and diameter, thereby increasing the contact area between the pulley 13 and the transmission belt 12, improving the reliability of the pulley 13 in supporting the transmission belt 12, and ensuring that there is a certain distance between the portion of the transmission belt 12 above the pulley 13 and the portion of the transmission belt 12 below the pulley 13 when the transmission belt 12 is supporting the vehicle body 201. This prevents the portion of the transmission belt 12 above the pulley 13 from contacting the portion of the transmission belt 12 below the pulley 13 due to the weight of the vehicle body 201, which would prevent the transmission belt 12 from rotating and thus prevent the vehicle body 201 from moving.

[0054] Furthermore, one of the two pulleys 13 is the driving pulley 131, and the other is the driven pulley 132. The output shaft of the driving member 11 is connected to the driving pulley 131, so that one pulley 13 connected to the output shaft of the driving member 11 is the driving pulley 131 and the other is the driven pulley 132. The driving force of the driving member 11 can be transmitted to the driving pulley 131 through the output shaft of the driving member 11, so that the driving pulley 131 can rotate under the action of the driving member 11. In addition, the driving member 11 can drive the transmission belt 12 to rotate through the driving pulley 131. Thus, the driving member 11 can drive the driving pulley 131 to drive the transmission belt 12 to move, and the transmission belt 12 can then drive the driven pulley 132 to move, thereby realizing the continuous rotation of the transmission belt 12 and reducing the number of driving members 11, thus reducing the installation cost.

[0055] It should be noted that in actual design, either of the two pulleys 13 can be the driving pulley 131 and the other can be the driven pulley 132, which can improve the flexibility of the setting.

[0056] In some embodiments, the output shaft of the drive member 11 is provided with a first transmission member 111, and the drive wheel 131 is equipped with a second transmission member 1311. The first transmission member 111 meshes with the second transmission member 1311, and the axis of the drive wheel 131 is perpendicular to the axis of the output shaft of the drive member 11.

[0057] Specifically, the driving component 11 can drive the drive wheel 131 to rotate, such as Figures 1-2 As shown, a first transmission member 111 is provided on the output shaft of the drive member 11, which can be sleeved on the output shaft of the drive member 11 to achieve a reliable connection between the drive member 11 and the first transmission member 111. A second transmission member 1311 is installed on the drive wheel 131, which can be sleeved on the central shaft of the drive wheel 131 to achieve a reliable connection between the drive wheel 131 and the second transmission member 1311. The first transmission member 111 and the second transmission member 1311 mesh, which can be constructed as a worm and a worm wheel, or both the first transmission member 111 and the second transmission member 1311 can be constructed as bevel gears, so that the driving force on the drive member 11 can be transmitted to the drive wheel 131 through the first transmission member 111 and the second transmission member 1311, so that the drive wheel 131 can rotate under the action of the drive member 11.

[0058] Furthermore, the axis of the drive wheel 131 is perpendicular to the axis of the output shaft of the drive member 11, so that the drive member 11 and the drive wheel 131 can be set perpendicularly to reduce the space occupied by the electric scooter body fatigue testing machine 100 in the axial direction of the drive wheel 131, which is beneficial to the setting of the electric scooter body fatigue testing machine 100. Moreover, by setting the first transmission member 111 and the second transmission member 1311, the direction of the driving force can be changed, converting the driving force rotating on the output shaft of the drive member 11 into the driving force rotating on the drive wheel 131, which can improve the accuracy of the rotation direction of the drive wheel 131, that is, improve the reliability of the operation of the drive wheel 131.

[0059] In some embodiments, the transmission belt 12 is formed with a plurality of protrusions 121 and a plurality of recesses 122, and the plurality of protrusions 121 and the plurality of recesses 122 are spaced apart on the surface of the transmission belt 12.

[0060] Specifically, a protrusion 121 and a recess 122 are formed on the transmission belt 12. The protrusion 121 extends outward from the surface of the transmission belt 12, and the recess 122 extends inward from the surface of the transmission belt 12. The protrusion 121 and the recess 122 are used to make the surface of the transmission belt 12 uneven, so as to simulate the vibration of the test piece 200 traveling on a bumpy road surface. This can more accurately simulate the traveling condition of the test piece 200. Furthermore, multiple protrusions 121 and multiple recesses 122 are formed on the surface of the transmission belt 12, and the multiple protrusions 121 and multiple recesses 122 are spaced apart on the surface of the transmission belt 12. This allows the multiple protrusions 121 and multiple recesses 122 to jointly simulate an uneven road surface, thereby improving the accuracy and reliability of the test results.

[0061] For example, such as Figure 5 As shown, four protrusions 121 and four recesses 122 are formed on the surface of the transmission belt 12. The four protrusions 121 and four recesses 122 can be used together to simulate an uneven road surface, thereby improving the accuracy and reliability of the test results.

[0062] Furthermore, it should be noted that the distance between the four protrusions 121 and the four recesses 122 is consistent with the national standard. Moreover, this application can not only test the strength of the vehicle body 201 and the vehicle control lever 202, but also test the strength of the wheel 203 under long-term vibration and load conditions. It can comprehensively evaluate the performance of the component under test 200, discover potential safety hazards in advance, improve the safety of the component under test 200, protect the personal safety of users, and reduce the probability of product recall and after-sales maintenance costs.

[0063] In some embodiments, the second loading component 3 is provided with a pressure sensor for detecting the load applied by the second loading component 3 to the vehicle control lever 202.

[0064] Specifically, the second loading component 3 is used to apply different loads to the vehicle control lever 202 according to different motion accelerations, and a pressure sensor is provided in the second loading component 3. The function of the pressure sensor is to detect the magnitude of the pressure. The pressure sensor can be used to monitor the load of the second loading component 3 on the vehicle control lever 202 in real time to ensure the accuracy and reliability of the detection results and provide reliable data support for product improvement.

[0065] In some embodiments, the first loading component 2 includes a counterweight frame 21 and a plurality of counterweight blocks, the counterweight frame 21 being adapted to support the vehicle body 201, and the plurality of counterweight blocks being adapted to be selectively configured on the counterweight frame 21.

[0066] Specifically, the first loading component 2 is used to load the vehicle body 201. The first loading component 2 includes a counterweight frame 21 and counterweight blocks. The counterweight blocks are used to load the vehicle body 201, and the counterweight frame 21 is used to support the counterweight blocks. The number of counterweight blocks can be multiple, that is, two, three or more counterweight blocks can be set to load the vehicle body 201 together, which can improve the reliability of loading the vehicle body 201. Furthermore, by supporting the counterweight frame 21 on the vehicle body 201, the connection between the vehicle body 201 and the counterweight frame 21 can be realized. By selectively configuring multiple counterweight blocks on the counterweight frame 21, the vehicle body 201 can be loaded using the counterweight blocks on the counterweight frame 21. The load applied to the vehicle body 201 can be changed by changing the number of counterweight blocks on the counterweight frame 21, so that the vehicle body 201 can be loaded according to actual needs to adapt to different testing requirements and increase the applicability of the electric scooter whole vehicle fatigue testing machine 100.

[0067] The counterweight can be a barbell plate, and the load applied to the vehicle body 201 by the first loading component 2 can be adjusted by increasing or decreasing the number of barbell plates to adapt to different testing requirements and increase the applicability of the electric scooter whole vehicle fatigue testing machine 100.

[0068] Furthermore, it should be noted that the load applied by the second loading component 3 to the vehicle control lever 202 can be calculated. For example, in the extreme state, assuming the maximum load-bearing capacity of the component under test 200 is M, the load applied by the first loading component 2 to the vehicle body 201 can be set to M, making the total weight of the multiple counterweights M, thus increasing the speed of the component under test 200 to its maximum achievable speed V. After reaching the maximum speed V, the accelerator is released, the brake is applied, and the distance S traveled by the component under test 200 after applying the brake is recorded and the time t taken to stop is recorded. The result can be calculated using the formula S = Vt + 0.5At. 2 We calculate the acceleration A, and then use the formula F=MA to calculate the force F that the second loading component 3 needs to provide.

[0069] In some embodiments, the counterweight frame 21 includes a counterweight base 211, a mounting rod 212, and a counterweight rod 213. The counterweight base 211 is supported on the vehicle body 201. The mounting rod 212 extends vertically and its lower end is connected to the counterweight base 211. The counterweight rod 213 extends horizontally, and the middle part of the counterweight rod 213 is intersected and connected to the middle part of the mounting rod 212. The counterweight block is adapted to be hung on the counterweight rod 213.

[0070] Specifically, the counterweight frame 21 is supported on the vehicle body 201 and is used to support the counterweight blocks, such as... Figure 3 As shown, the counterweight frame 21 includes a counterweight base 211, a mounting rod 212, and a counterweight rod 213. The counterweight base 211 is supported on the vehicle body 201 to connect the counterweight frame 21 to the vehicle body 201. The counterweight base 211 is constructed as a plate to increase the contact area between the counterweight base 211 and the vehicle body 201, thereby increasing the reliability of the connection between the counterweight frame 21 and the vehicle body 201. The mounting rod 212 extends vertically and its lower end is connected to the counterweight base 211, so that the lower end of the mounting rod 212 is connected to the counterweight base 211, and the mounting rod 212 has a certain length in the vertical direction. The counterweight rod 213 extends horizontally, and the counterweight block is suitable for hanging on the counterweight rod 213, so that the counterweight rod 213 has a certain length in the horizontal direction to facilitate the hanging of the counterweight block on the counterweight rod 213, thereby realizing the setting of the counterweight block.

[0071] It should be noted that, in actual use, the counterweight base 211 can also be fixedly connected to the vehicle body 201 using ropes or nylon cable ties, so that the first loading component 2 can remain stable when the test piece 200 is moving, simulating the state of human-vehicle integration, making it more in line with actual use and improving the accuracy and reliability of the test results.

[0072] Furthermore, by connecting the middle part of the counterweight rod 213 to the middle part of the mounting rod 212, the mounting rod 212 can be simultaneously connected to the counterweight base 211 and the counterweight rod 213, so that the counterweight on the counterweight rod 213 can be used to load the vehicle body 201. The counterweight rod 213 can also have a certain height, so that the center of gravity of the counterweight can have a certain height, to simulate the state of the user standing on the vehicle body 201. The counterweight rod 213 can also have a certain length on both the left and right sides of the mounting rod 212, so that the counterweight can be hung on the counterweight rod 213 to load the vehicle body 201.

[0073] In some embodiments, the electric scooter whole vehicle fatigue testing machine 100 further includes a mounting frame 5, on which the first loading component 2, the second loading component 3 and the motion component 1 are respectively mounted.

[0074] Specifically, the electric scooter whole vehicle fatigue testing machine 100 includes a first loading component 2, a second loading component 3, and a motion component 1. A mounting frame 5 is provided in the electric scooter whole vehicle fatigue testing machine 100. The mounting frame 5 is used to install the first loading component 2, the second loading component 3, and the motion component 1. That is, the first loading component 2, the second loading component 3, and the motion component 1 are respectively installed on the mounting frame 5 to improve the reliability of the operation of the first loading component 2, the second loading component 3, and the motion component 1. The mounting frame 5 is constructed as a frame structure and can be supported on the ground or a table to improve the stability of the mounting frame 5, thereby improving the reliability of the mounting frame 5 in installing the first loading component 2, the second loading component 3, and the motion component 1.

[0075] In some embodiments, the mounting bracket 5 is provided with a limiting through groove 51, and at least a portion of the first loading component 2 passes through the limiting through groove 51. The through direction of the limiting through groove 51 is perpendicular to the loading direction of the first loading component 2 on the vehicle body 201.

[0076] Specifically, a limiting slot 51 is provided on the mounting bracket 5. At least a portion of the first loading component 2 passes through the limiting slot 51, so that part or all of the first loading component 2 can pass through the limiting slot 51 to restrict the movement of the first loading component 2. The through direction of the limiting slot 51 is perpendicular to the loading direction of the first loading component 2 on the vehicle body 201, so that the limiting slot 51 can pass through vertically, so that at least a portion of the first loading component 2 can pass through the limiting slot 51, thereby improving the reliability of restricting the movement of the first loading component 2 using the limiting slot 51.

[0077] It should be noted that, for example Figure 1 and Figure 4 As shown, by connecting the second loading component 3 to the mounting rod 212, the first loading component 2 and the second loading component 3 can be connected to simulate the state in which the user simultaneously applies force to the vehicle body 201 and the vehicle control lever 202 when the test piece 200 is in motion. At the same time, the mounting rod 212 in the first loading component 2 is inserted into the limiting groove 51 to restrict the movement of the first loading component 2 and the second loading component 3. This allows the first loading component 2 to remain stable when the test piece 200 vibrates, thus better reflecting actual usage conditions and improving the accuracy and reliability of the test results.

[0078] Furthermore, the second loading component 3 can be connected to the mounting rod 212 via bolts and nuts to facilitate the adjustment of the height of the second loading component 3, thereby simulating the force applied to the vehicle control lever 202 by users of different heights. This also allows the electric scooter body fatigue testing machine 100 to adapt to test pieces 200 of different heights, increasing the applicability of the electric scooter body fatigue testing machine 100.

[0079] In some embodiments, the control component 4 includes a display 41 and a controller 42. The controller 42 is adapted to control the movement of the motion component 1 to drive the vehicle body 201 to run. The display 41 is electrically connected to the controller 42 and has a display area 411.

[0080] Specifically, the control component 4 is electrically connected to the motion component 1 and the second loading component 3 respectively. The control component 4 includes a display 41 and a controller 42. The controller 42 is adapted to control the motion component 1 to drive the vehicle body 201 to run. That is, the control component 4 can control the motion component 1 through the controller 42. The controller 42 can also control the second loading component 3 to apply different loads to the vehicle body control lever 202 according to different motion accelerations. The display 41 is electrically connected to the controller 42 so that the display 41 can be used to display the load applied by the second loading component 3 to the vehicle body control lever 202. The display 41 has a display area 411, which can display the load applied by the second loading component 3 to the vehicle body control lever 202. The display area 411 is set facing the inspection personnel so that the inspection personnel can view the data displayed in the display area 411.

[0081] It should be noted that the controller 42 can be a PLC (Programmable Logic Controller), DCS (Distributed Control System), or SCADA (Supervisory Control and Data Acquisition), which can improve the flexibility and scalability of the setup, reduce errors from manual operation, and improve the accuracy of the test results and the efficiency of the test.

[0082] Furthermore, in practical applications, more complex environmental simulation systems can be introduced, such as simulating load conditions under different terrains (different wheel shapes 203) and climatic conditions (spraying water), to further improve the comprehensiveness and reliability of the detection.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fatigue testing machine for the entire body of an electric scooter, characterized in that, The electric scooter body fatigue testing machine is used to test the fatigue strength of the component under test, which includes the scooter body and the scooter control lever. The electric scooter body fatigue testing machine includes: A motion component, the motion component being used to support the object to be tested and adapted to drive the vehicle body to move and brake the vehicle body; A first loading component, the first loading component being used to load the vehicle body; The second loading component is used to load the vehicle control lever; A control component is electrically connected to both the motion component and the second loading component, and the control component is adapted to control the load applied by the second loading component to the vehicle control lever based on the motion acceleration of the object under test.

2. The electric scooter whole-vehicle fatigue testing machine according to claim 1, characterized in that, The vehicle control lever includes two grip handles, and the second loading component includes two loading electric cylinders, with the output ends of the two loading electric cylinders respectively connected to the two grip handles.

3. The electric scooter whole-vehicle fatigue testing machine according to claim 2, characterized in that, The output end of the loading electric cylinder is provided with an output sleeve, which is sleeved on the grip handle; The output sleeve is adapted to apply a load in a first direction to the grip handle when the motion acceleration is positive, and to apply a load in a second direction to the grip handle when the motion acceleration is negative, wherein the first direction is opposite to the second direction.

4. The electric scooter whole-vehicle fatigue testing machine according to claim 1, characterized in that, The motion component includes a drive element and a transmission belt, wherein the drive element is used to drive the transmission belt to rotate continuously. The vehicle body is equipped with wheels, which are supported by the drive belt.

5. The electric scooter whole-vehicle fatigue testing machine according to claim 4, characterized in that, The motion component includes two pulleys spaced apart, and a transmission belt is wound around the two pulleys. One of the two pulleys is a driving pulley and the other is a driven pulley. The output shaft of the drive component is poweredly connected to the drive wheel and is adapted to drive the transmission belt to rotate via the drive wheel.

6. The electric scooter whole-vehicle fatigue testing machine according to claim 5, characterized in that, The output shaft of the drive unit is provided with a first transmission component, and the drive wheel is equipped with a second transmission component. The first transmission component meshes with the second transmission component, and the axis of the drive wheel is perpendicular to the axis of the output shaft of the drive unit.

7. The electric scooter whole-vehicle fatigue testing machine according to claim 4, characterized in that, The transmission belt has a plurality of protrusions and a plurality of recesses, and the plurality of protrusions and recesses are spaced apart on the surface of the transmission belt.

8. The fatigue testing machine for the entire body of an electric scooter according to claim 1, characterized in that, The second loading component is equipped with a pressure sensor, which is used to detect the load applied by the second loading component to the vehicle control lever.

9. The fatigue testing machine for the entire body of an electric scooter according to claim 1, characterized in that, The first loading component includes a counterweight frame and a plurality of counterweight blocks, the counterweight frame being adapted to support the vehicle body, and the plurality of counterweight blocks being adapted to be selectively configured on the counterweight frame.

10. The fatigue testing machine for the entire body of an electric scooter according to claim 9, characterized in that, The counterweight frame includes a counterweight base, a mounting rod, and a counterweight rod. The counterweight base is supported on the vehicle body. The mounting rod extends vertically and its lower end is connected to the counterweight base. The counterweight rod extends horizontally, and the middle part of the counterweight rod intersects and connects with the middle part of the mounting rod. The counterweight block is adapted to be hung on the counterweight rod.

11. The fatigue testing machine for the entire body of an electric scooter according to claim 1, characterized in that, It also includes a mounting frame, on which the first loading component, the second loading component, and the motion component are respectively mounted.

12. The fatigue testing machine for the entire body of an electric scooter according to claim 11, characterized in that, The mounting bracket is provided with a limiting through groove, and at least a portion of the first loading component passes through the limiting through groove. The through direction of the limiting through groove is perpendicular to the loading direction of the first loading component on the vehicle body.

13. The fatigue testing machine for the entire body of an electric scooter according to claim 1, characterized in that, The control component includes a display and a controller. The controller is adapted to control the movement of the motion component to drive the vehicle body. The display is electrically connected to the controller and has a display area.

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