An electric bicycle injury capacity testing device and method

Abstract

The application relates to the field of testing, and provides an electric bicycle injury capacity testing device, which comprises a detection system, the detection system comprises a support main frame, a workpiece fixing device is fixedly connected to the support main frame, a driving assembly, a vertical impact assembly and a horizontal impact assembly are connected to the support main frame, and the vertical impact assembly and the horizontal impact assembly are linked with the driving assembly. Through the linkage design of the vertical impact assembly and the horizontal impact assembly, the workpiece upper edge and the side edge multiple positions can be impacted and tested in one test cycle, the test efficiency is improved, the manual operation strength is reduced, the original invalid movement process is converted into an effective test process, and the time utilization and the test density of the device are fundamentally improved.

Description

Technical Field

[0001] This invention relates to the field of testing technology, and specifically to a device and method for testing the damage-bearing capacity of an electric bicycle. Background Technology

[0002] Utility model patent CN219170663U discloses a fixing device for testing bicycle rims, including a frame, a testing mechanism mounted on the frame, and a fixing mechanism for fixing the rim. The fixing mechanism includes a first fixing seat and a second fixing seat respectively disposed on both sides of the frame and fixedly connected to the frame. A first clamping plate and a second clamping plate are disposed on the first and second fixing seats, respectively. The first and second clamping plates are connected to the first and second fixing seats via telescopic cylinders. This utility model allows adjustment of the distance between the first and second clamping plates for clamping the rim by adjusting the length of the telescopic cylinder, thereby enabling the fixing of rims of different diameters.

[0003] However, the aforementioned device can only perform impact tests on a single location above the rim during a single impact, and the process of the impact plate moving upward takes a relatively long time. This process cannot perform impact tests on other parts of the rim, thus reducing testing efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention aims to provide a device and method for testing the damage-bearing capacity of electric bicycles. To solve these problems, this invention employs the following technical solution: An electric bicycle damage-bearing capacity testing device includes a testing system. The testing system includes a support frame, a workpiece fixing device fixedly connected to the support frame, and a drive component, a vertical impact component, and a horizontal impact component connected to the support frame. The vertical impact component and the horizontal impact component are respectively linked to the drive component.

[0005] Optionally, the drive assembly includes a motor and a gear, with the motor fixedly connected to the support frame and the gear fixedly connected to the rotor of the motor. The vertical impact assembly includes a vertical rack and a lifting test seat. The vertical rack is fixed to the lifting test seat and meshes with a gear. The lifting test seat is slidably connected to the support frame.

[0006] Optionally, the horizontal impact assembly includes a horizontal rack, a connecting rod, a transmission seat, a horizontal test seat, a displacement bar, a transmission plate, and a locking device; The horizontal rack, transmission seat, horizontal test seat, displacement bar, and transmission plate are all slidably connected to the support frame. The horizontal rack meshes with the gear. The horizontal rack is fixed to the transmission seat via a connecting rod. A permanent magnet is slidably connected to the transmission seat. An extension bar is fixed to the permanent magnet. A permanent magnet is fixed to the horizontal test seat. The horizontal test seat is connected to the support frame via an elastic element. A passive triangular prism block is fixed to the displacement bar. A pressing piece is fixed to the passive triangular prism block. The passive triangular prism block is connected to the support frame via an elastic element. A roller is rotatably connected to the displacement bar. An inclined channel is opened on the transmission plate. The roller is slidably connected to the inner wall of the inclined channel. A support column is rotatably connected to the transmission plate. The support column abuts against the bottom wall of the extension bar. The locking device is fixed to the support frame. The locking device has a locking groove and a pressing self-locking component is provided in the locking groove. The pressing self-locking component and the passive triangular prism block are adapted to each other. An active triangular prism block is fixed to the lifting test seat.

[0007] Optionally, a limit block is fixedly connected to the transmission seat.

[0008] Optionally, both the lifting test stand and the horizontal test stand are equipped with pressure sensors.

[0009] Optionally, both permanent magnet one and permanent magnet two are made of neodymium, iron and boron.

[0010] Optionally, both elastic element one and elastic element two are helical springs.

[0011] Optionally, both the lifting test seat and the horizontal test seat are made of austenitic stainless steel.

[0012] Optionally, it also includes a control system, and an electrical connection between the control system and the detection system; The control system includes a processing module, a human-computer interaction module, and a data transmission module.

[0013] A method for testing the damage-bearing capacity of an electric bicycle, comprising the following steps, using an electric bicycle damage-bearing capacity testing device to test the workpiece: The workpiece is clamped and fixed using the workpiece fixing device, and the vertical impact component and horizontal impact component are driven by the driving component to perform vertical and horizontal impact tests on the workpiece.

[0014] The present invention has the following beneficial effects: In summary, this invention, through the coordinated design of the vertical and horizontal impact components, enables impact testing at multiple locations on the upper and side edges of the workpiece within a single test cycle. This not only improves testing efficiency but also reduces the intensity of manual operation. Addressing the problem in the prior art where "single-point impact is possible and the upward movement process cannot be utilized," this invention transforms the originally ineffective motion process into an effective testing process through a multi-directional coordinated impact mechanism, fundamentally improving the time utilization and testing density of the device. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an electric bicycle damage bearing capacity testing device according to the present invention; Figure 2 This is a schematic diagram of the detection system in this invention from one angle; Figure 3 This is a schematic diagram of the detection system in this invention from another angle; Figure 4 This is a schematic diagram of the passive triangular prism block, displacement bar, and transmission plate in this invention; Figure 5 This is a schematic diagram of the structure of the support column, permanent magnet 1, and extension strip in this invention; Figure 6 This is a schematic diagram of the control system in this invention; Figure 7 This is a diagram illustrating the operational steps of the present invention.

[0017] Reference numerals: 1. Support frame; 2. Workpiece fixing device; 3. Motor; 4. Gear; 5. Vertical rack; 6. Lifting test seat; 7. Horizontal rack; 8. Connecting rod; 9. Transmission seat; 10. Permanent magnet one; 11. Extension bar; 12. Horizontal test seat; 13. Permanent magnet two; 14. Elastic element one; 15. Limiting block; 16. Passive triangular prism block; 17. Displacement bar; 18. Elastic element two; 19. Roller; 20. Transmission plate; 21. Inclined channel; 22. Locking device; 23. Locking groove; 24. Press plate; 25. Active triangular prism block; 26. Support column. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] like Figures 1-5 As shown, an electric bicycle damage-bearing capacity testing device includes a testing system. The testing system includes a support frame 1, a workpiece fixing device 2 fixedly connected to the support frame 1, and a drive component, a vertical impact component, and a horizontal impact component connected to the support frame 1. The vertical impact component and the horizontal impact component are respectively linked to the drive component.

[0022] The workpiece is stably clamped by the workpiece fixing device 2 to ensure that the force position is accurate and does not shift during the test.

[0023] Based on the above scheme, in one embodiment of the present invention, the driving component includes a motor 3 and a gear 4, the motor 3 is fixedly connected to the support frame 1, and the gear 4 is fixedly connected to the rotor of the motor 3. The vertical impact assembly includes a vertical rack 5 and a lifting test seat 6. The vertical rack 5 is fixed to the lifting test seat 6, and the vertical rack 5 meshes with the gear 4. The lifting test seat 6 is slidably connected to the support frame 1.

[0024] The motor 3 drives the gear 4 to rotate, and it meshes with the vertical rack 5 to convert the rotational motion into linear motion, thereby driving the lifting test seat 6 to achieve vertical impact.

[0025] In a preferred embodiment of the present invention, the horizontal impact assembly includes a horizontal rack 7, a connecting rod 8, a transmission seat 9, a horizontal test seat 12, a displacement bar 17, a transmission plate 20, and a locking device 22. The horizontal rack 7, transmission seat 9, horizontal test seat 12, displacement bar 17, and transmission plate 20 are all slidably connected to the support frame 1. The horizontal rack 7 meshes with the gear 4. The horizontal rack 7 is fixedly connected to the transmission seat 9 through the connecting rod 8. A permanent magnet 10 is slidably connected to the transmission seat 9. An extension bar 11 is fixedly connected to the permanent magnet 10. A permanent magnet 13 is fixedly connected to the horizontal test seat 12. The horizontal test seat 12 is connected to the support frame 1 through an elastic element 14. A passive triangular prism block 16 is fixedly connected to the displacement bar 17. A pressing piece 24 is fixedly connected to the passive triangular prism block 16. The passive triangular prism block 16 is connected to the support frame 1 through an elastic element 18. A roller 19 is rotatably connected to the displacement bar 17. An inclined channel 21 is opened on the transmission plate 20. The roller 19 is slidably connected to the inner wall of the inclined channel 21. A support column 26 is rotatably connected to the transmission plate 20. The support column 26 abuts against the bottom wall of the extension bar 11. The locking device 22 is fixedly connected to the support frame 1. The locking device 22 has a locking groove 23. The locking groove 23 is provided with a pressing self-locking component. The pressing self-locking component and the passive triangular prism block 16 are mutually compatible. The lifting test seat 6 is fixedly connected with an active triangular prism block 25.

[0026] The horizontal rack 7 is driven by gear 4, and the horizontal impact test is completed by the magnetic effect of permanent magnet 10 and permanent magnet 2 13.

[0027] Both the press-lock component and the button 24 can be implemented using existing technologies, such as referring to existing press-lock components and memory cards in mobile phone memory card slots. The button 24 locks itself in place when pressed once on the press-lock component, then pressing the self-lock component causes the button 24 to spring back a short distance, and pressing the button 24 again on the press-lock component releases the lock.

[0028] Preferably, a limiting block 15 is fixedly connected to the transmission base 9. The limiting block 15 restricts the movement range of the permanent magnet 10.

[0029] To enable pressure detection, pressure sensors are installed on both the lifting test seat 6 and the horizontal test seat 12. These intelligent pressure sensors collect force data in real time during the impact process, facilitating the processing module's quantitative analysis of damage-bearing capacity.

[0030] Regarding the choice of materials, both permanent magnet 10 and permanent magnet 213 are made of neodymium, iron, and boron. Neodymium-iron-boron materials provide high magnetic energy product and stable magnetic force to ensure the reliability of the magnetic force.

[0031] Both the lifting test stand 6 and the horizontal test stand 12 are made of austenitic stainless steel. The use of austenitic stainless steel improves structural strength and corrosion resistance, ensuring long-term testing stability.

[0032] Optionally, both elastic element 14 and elastic element 18 are helical springs. The helical springs provide elastic restoring force, enabling automatic reset and energy buffering after impact.

[0033] In addition, such as Figure 6 As shown, the testing device also includes a control system, and the control system and the detection system are electrically connected; The control system includes a processing module, a human-machine interface module, and a data transmission module. The processing module analyzes the collected data, the human-machine interface module enables parameter setting and result display, and the data transmission module facilitates remote data transmission. The data transmission module can use wired or wireless transmission.

[0034] A method for testing the damage-bearing capacity of an electric bicycle, comprising the following steps, using an electric bicycle damage-bearing capacity testing device to test the workpiece: The workpiece is clamped and fixed using the workpiece fixing device 2, and the vertical impact component and horizontal impact component are driven by the driving component to perform vertical and horizontal impact tests on the workpiece.

[0035] Implementation process: In the initial state, permanent magnet 10 and permanent magnet 13 are magnetically connected, the support column 26 and the bottom wall of the extension strip 11 abut against each other, the roller 19 is located at the upper limit position inside the inclined channel 21, and the pressing piece 24 is not inserted into the locking groove 23. The workpiece is clamped and fixed by the workpiece fixing device 2. The workpiece fixing device 2 can be designed with reference to various existing technologies and is not limited here.

[0036] The motor 3 is started by controlling the control system. The rotor of the motor 3 causes the gear 4 to rotate counterclockwise. The gear 4 drives the vertical rack 5 to move upward. The vertical rack 5 and the lifting test seat 6 gradually move upward. The gear 4 drives the horizontal rack 7 to move to the right. The horizontal rack 7, the connecting rod 8 and the transmission seat 9 gradually move to the right. The permanent magnet 10 and the permanent magnet 2 13 are magnetically connected. The permanent magnet 10 drives the permanent magnet 2 13 and the horizontal test seat 12 to move to the right together, overcoming the elastic force of the elastic element 14.

[0037] As the lifting test seat 6 moves upward, the active triangular prism block 25 pushes the passive triangular prism block 16 to the right. The passive triangular prism block 16, displacement bar 17, roller 19, and pressing plate 24 overcome the elastic force of the second elastic element 18 and move to the right. The roller 19 slides on the inner wall of the inclined channel 21. Due to the inclined setting of the inclined channel 21, the roller 19 will drive the transmission plate 20 and the support column 26 to move upward. The support column 26 lifts the extension bar 11 and the first permanent magnet 10. The first permanent magnet 10 moves upward to above the second permanent magnet 13. After the second permanent magnet 13 loses the magnetic attraction of the first permanent magnet 10, it moves quickly to the left under the action of the elastic force of the first elastic element 14, so that the horizontal test seat 12 performs a horizontal impact test on the right edge of the workpiece on the workpiece fixing device 2.

[0038] When the button 24 moves to the right, it will insert into the locking groove 23. The button 24 will press down on the self-locking component, thereby locking the button 24 and the self-locking component. The active triangular prism block 25 moves up to above the passive triangular prism block 16 and then disengages and abuts against the passive triangular prism block 16. The button 24 bounces back a small distance on the self-locking component.

[0039] When the lifting test seat 6 moves up to the preset height, the control motor 3 is de-energized. The motor 3 is non-brake type, and the rotor can rotate under external force after the power is cut off. The lifting test seat 6 drives the vertical rack 5 to move down quickly under its own gravity. The bottom wall of the lifting test seat 6 performs a vertical impact test on the upper edge of the workpiece. During this process, the active triangular prism block 25 will push the passive triangular prism block 16 to the right by a small distance, so that the button 24 is pressed down on the self-locking assembly again. The button 24 and the self-locking assembly are unlocked. The passive triangular prism block 16, the displacement bar 17, and the roller 19 move to the left and reset under the elastic force of the elastic element 2 18. The roller 19 drives the transmission plate 20 and the support column 26 to move down and reset.

[0040] The vertical rack 5 will drive the gear 4 to reverse, the gear 4 will drive the horizontal rack 7 to move to the left, the horizontal rack 7 will drive the connecting rod 8, the transmission seat 9, and the permanent magnet 10 to move to the left. Since the permanent magnet 10 has moved down and reset, when the permanent magnet 10 approaches the permanent magnet 2 13, it will magnetically attract the permanent magnet 2 13 and make a magnetic connection, so that when the lifting test seat 6 moves up and the transmission seat 9 moves to the right next time, the transmission seat 9 will drive the horizontal test seat 12 to move to the right again, thus realizing the cyclic impact test.

[0041] Beneficial effects of this invention: This invention achieves efficient conversion of rotational motion to vertical linear motion through the linkage structure of motor 3, gear 4, vertical rack 5 and lifting test seat 6. While ensuring the stability of impact force, it enables the lifting test seat 6 to quickly complete the rising and free falling process, thereby forming an effective vertical impact test.

[0042] Secondly, through the coordinated action of the horizontal rack 7, connecting rod 8, transmission seat 9, permanent magnet 10 and permanent magnet 2 13, the rapid displacement of the horizontal test seat 12 is triggered synchronously during the upward movement of the lifting test seat 6, realizing the linkage between vertical movement and horizontal impact. This allows the device to complete impact tests in different directions in the same motion cycle, avoiding the problem that traditional devices can only test at a single point and in a single direction, and improving the comprehensiveness and continuity of the test.

[0043] Furthermore, through the linkage design of the active triangular prism block 25, the passive triangular prism block 16, the displacement bar 17, the roller 19 and the inclined channel 21, the vertical displacement of the lifting test seat 6 is transformed into multi-stage transmission action, which causes the transmission plate 20 and the support column 26 to lift, thereby driving the extension bar 11 and the permanent magnet 10 to switch positions. The structural transmission path is clear and no additional power source is required.

[0044] Furthermore, by supporting the extension bar 11 and the permanent magnet 10 through the support column 26, the permanent magnet 10 can be detached from the magnetic adsorption of the permanent magnet 13 at a specific position. Under the action of the elastic element 14, it drives the horizontal test seat 12 to rebound quickly, thereby forming an instantaneous impact force. This structure utilizes the combination of magnetic force and elastic force to achieve a stable impact effect without complex control, thus improving the consistency and repeatability of impact testing.

[0045] By cooperating with the self-locking components in the pressing plate 24, locking device 22 and locking groove 23, the displacement bar 17 can be locked and released at a specific stage, so that there is a clear rhythmic action switch between the horizontal impact and vertical impact processes, avoiding mutual interference between the mechanisms and improving the controllability and stability of the test action.

[0046] The elastic restoring force provided by elastic element 14 and elastic element 2 18 enables each moving part to automatically return to its initial position after impact, eliminating the need for an additional reset mechanism, reducing energy consumption and structural complexity, while ensuring that the device can perform continuous cyclic testing and improving the degree of automation.

[0047] By setting pressure sensors on the lifting test seat 6 and the horizontal test seat 12, the force data during the impact process can be collected and fed back in real time. Combined with the data analysis by the processing module in the control system, the workpiece's damage resistance can be quantitatively evaluated. Compared with the traditional method that relies on human experience, the accuracy and objectivity of the test results are significantly improved.

[0048] In summary, this invention, through the coordinated design of the vertical and horizontal impact components, enables impact testing at multiple locations on the upper and side edges of the workpiece within a single test cycle. This not only improves testing efficiency but also reduces the intensity of manual operation. Addressing the problem in the prior art where "single-point impact is possible and the upward movement process cannot be utilized," this invention transforms the originally ineffective motion process into an effective testing process through a multi-directional coordinated impact mechanism, fundamentally improving the time utilization and testing density of the device.

[0049] The components, modules, assemblies, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A device for testing the damage-bearing capacity of an electric bicycle, characterized in that, The system includes a detection system, which includes a support frame (1), a workpiece fixing device (2) fixedly connected to the support frame (1), and a drive assembly, a vertical impact assembly and a horizontal impact assembly connected to the support frame (1). The vertical impact assembly and the horizontal impact assembly are linked to the drive assembly.

2. The electric bicycle damage-bearing capacity testing device according to claim 1, characterized in that, The drive assembly includes a motor (3) and a gear (4). The motor (3) is fixed to the support frame (1), and the gear (4) is fixed to the rotor of the motor (3). The vertical impact assembly includes a vertical rack (5) and a lifting test seat (6). The vertical rack (5) is fixed to the lifting test seat (6), and the vertical rack (5) meshes with the gear (4). The lifting test seat (6) is slidably connected to the support frame (1).

3. The electric bicycle damage-bearing capacity testing device according to claim 2, characterized in that, The horizontal impact assembly includes a horizontal rack (7), a connecting rod (8), a transmission seat (9), a horizontal test seat (12), a displacement bar (17), a transmission plate (20), and a locking device (22). The horizontal rack (7), transmission seat (9), horizontal test seat (12), displacement bar (17), and transmission plate (20) are all slidably connected to the support frame (1). The horizontal rack (7) meshes with the gear (4). The horizontal rack (7) is fixedly connected to the transmission seat (9) through the connecting rod (8). A permanent magnet (10) is slidably connected to the transmission seat (9). An extension bar (11) is fixedly connected to the permanent magnet (10). A permanent magnet (13) is fixedly connected to the horizontal test seat (12). The horizontal test seat (12) is connected to the transmission seat (9) through an elastic element (14) and The support frame (1) is connected, a passive triangular prism block (16) is fixedly connected to the displacement bar (17), a pressing piece (24) is fixedly connected to the passive triangular prism block (16), the passive triangular prism block (16) is connected to the support frame (1) through the elastic element two (18), a roller (19) is rotatably connected to the displacement bar (17), an inclined channel (21) is opened on the transmission plate (20), the roller (19) is slidably connected to the inner wall of the inclined channel (21), a support column (26) is rotatably connected to the transmission plate (20), and the support column (26) abuts against the bottom wall of the extension bar (11); The locking device (22) is fixed to the support frame (1). The locking device (22) has a locking groove (23). The locking groove (23) is provided with a pressing self-locking component. The pressing self-locking component and the passive triangular prism block (16) are adapted to each other. The lifting test seat (6) is fixed with an active triangular prism block (25).

4. The electric bicycle damage-bearing capacity testing device according to claim 3, characterized in that, A limiting block (15) is fixedly connected to the transmission seat (9).

5. The electric bicycle damage-bearing capacity testing device according to claim 4, characterized in that, Pressure sensors are provided on both the lifting test seat (6) and the horizontal test seat (12).

6. The electric bicycle damage-bearing capacity testing device according to claim 5, characterized in that, The materials of permanent magnet one (10) and permanent magnet two (13) both include neodymium, iron and boron.

7. The electric bicycle damage-bearing capacity testing device according to claim 6, characterized in that, Both the first elastic element (14) and the second elastic element (18) are helical springs.

8. The electric bicycle damage-bearing capacity testing device according to claim 7, characterized in that, The lifting test seat (6) and the horizontal test seat (12) are both made of austenitic stainless steel.

9. The electric bicycle damage-bearing capacity testing device according to claim 1, characterized in that, It also includes the control system, and the electrical connection between the control system and the detection system; The control system includes a processing module, a human-computer interaction module, and a data transmission module.

10. A method for testing the damage-bearing capacity of an electric bicycle, characterized in that, The test device for testing the damage resistance of an electric bicycle according to any one of claims 1-9 includes the following steps: clamping and fixing the workpiece using the workpiece fixing device (2), and driving the vertical impact component and the horizontal impact component to perform vertical impact test and horizontal impact test on the workpiece using the drive component.

Images