A cable bending strength test device for charging piles

Abstract

The present invention discloses a charging pile cable bending strength test device, which belongs to the field of charging pile cable detection, including a test bench, a bending simulation unit is arranged on the top of the test bench, which is used to adjust the bending position and bending amplitude of the charging pile cable body, and a bending detection mechanism is arranged on the top of the test bench, which is used to detect the bending strength of the charging pile cable body during the bending test. When the bending position of the charging pile cable needs to be replaced, the present invention starts the reciprocating servo motor to make the adjustment module rotate synchronously, thereby driving the cable winding position to move by winding the adjustment sleeve, so as to achieve the effect of conveniently replacing the charging pile cable bending test detection position, and then starts the adjustment motor to drive the adjustment screw to rotate, so that the cone drive slider that touches and connects with the top of the adjustment cone is correspondingly extended and retracted, and the winding diameter of the arc-shaped fitting ring is changed, so as to achieve the effect of conveniently adjusting the bending amplitude of the charging pile cable.

Description

Technical Field

[0001] The present invention relates to the technical field of charging pile cable detection, and in particular to a charging pile cable bending strength test device. Background Art

[0002] In order to increase the charging speed of charging piles and reduce the weight and diameter of charging cables, a liquid-cooled supercharging architecture is often used to design cable specifications and charging speeds. A liquid-cooling tube for circulating cold liquid is added to the liquid-cooled charging cable to cool the wires that heat up during the charging process, thereby preventing the cable from increasing internal resistance and increasing energy consumption due to temperature rise. When the charging piles are put into use, the charging cables are often stored through cable reeling devices to avoid being dragged on the ground and crushed by passing vehicles. When the charging cables are working, they are often connected to the vehicle charging port in a bent form. After long-term use, charging cables that have been bent multiple times may have internal charging wire breakage or cracks in the external sheath, and the cable bending strength needs to be tested.

[0003] At present, when charging pile cables are subjected to bending strength tests, the bending test part is often clamped by a clamping device, and the cable is repeatedly bent by a bending device. During the bending test, the cable is tested to see whether it can be powered normally. However, the above bending test has the following problems:

[0004] When changing the bending test site, it is often necessary to loosen the clamping device and move it to the next test site, which is a cumbersome operation;

[0005] When the cable is bent by the bending equipment, the bending amplitude and twisting degree of the cable cannot be adjusted, and the bending test data obtained is relatively simple, which cannot simulate the bending amplitude and twisting state of the cable in actual use;

[0006] Only by testing whether the cable can be powered normally, it is impossible to determine whether the heat dissipation performance of the liquid cooling pipe is affected when it is bent - whether the pipe sealing and fluidity are affected, and the detection target is relatively single.

[0007] Therefore, a charging pile cable bending strength test device is proposed. Summary of the invention

[0008] The purpose of the present invention is to solve the problems that the existing charging pile cable bending test adopts fixed-position bending, which makes the operation cumbersome and the bending test data single when changing the charging pile cable detection position and bending amplitude, and only detects whether the cable can be powered on normally, but cannot judge whether the heat dissipation performance of the liquid cooling tube is affected when bending. A charging pile cable bending strength test device is proposed to solve the problems that the charging pile cable bending test adopts fixed-position bending, which makes the operation cumbersome and the bending test data single when changing the charging pile cable detection position and bending amplitude, and only detects whether the cable can be powered on normally, but cannot judge whether the heat dissipation performance of the liquid cooling tube is affected when bending.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A charging pile cable bending strength test device, comprising a test bench for a charging pile cable body bending test, wherein a clamping component for fixing the non-cable parts of the two ends of the charging pile cable body is arranged on the top of the test bench, wherein the clamping component is composed of a gun head end fixing sleeve and a connection end fixing sleeve, and a bending simulation unit is arranged on the top of the test bench, wherein the bending simulation unit is composed of a bending adjustment mechanism and a twisting simulation mechanism, and the bending adjustment mechanism is used to adjust the bending part and bending amplitude of the charging pile cable body;

[0011] A bending detection mechanism located outside the bending simulation unit is arranged on the top of the test bench, and the bending detection mechanism is used to detect the bending strength of the charging pile cable body during the bending test.

[0012] Preferably, the bending adjustment mechanism consists of an adjusting component and a driving component, the adjusting component includes an adjusting module sliding on the top of the test bench, a coiled adjustment sleeve is fixedly installed on the top of the adjusting module, an arc-shaped fitting ring is arranged on the top of the coiled adjustment sleeve, and the arc-shaped fitting ring is surrounded by a plurality of arc-shaped fitting sliders.

[0013] Preferably, an adjustment limit ring is provided on one side of the arc-shaped fitting ring close to the axis of the winding adjustment sleeve, the bottom of the adjustment limit ring is rotatably connected to the top of the winding adjustment sleeve, the arc-shaped fitting slider is slidably connected to the inner wall of the adjustment limit ring through a winding connecting rod, and a winding twisting groove is provided at the bottom of the arc-shaped fitting slider.

[0014] Preferably, the driving component includes a reciprocating servo motor arranged on the side of the test bench and a spiral telescopic control assembly arranged inside the adjusting module, the output shaft of the reciprocating servo motor is fixed with a reciprocating screw transmission-connected to the adjusting module, the spiral telescopic control assembly consists of an adjusting motor, an adjusting screw and an adjusting cone, the adjusting screw is fixed to the top of the output shaft of the adjusting motor, and the adjusting cone is slidably connected to the inner wall of the coiled adjusting sleeve by a threaded connection with the adjusting screw.

[0015] Preferably, a conical driving slider is provided on one side of the arc-shaped fitting slider close to the axis of the coiled adjustment sleeve, and the bottom of the conical driving slider is movably connected to the top of the adjustment cone.

[0016] Preferably, the twisting simulation mechanism includes a clamping bracket sliding on the top of the test bench, a twisting driving column is fixed to the inner wall of the clamping bracket, and the outer surfaces of the gun head end fixing sleeve and the connecting end fixing sleeve are provided with a twisting arc groove slidably connected to the twisting driving column.

[0017] Preferably, a buffer positioning assembly is provided on one side of the clamping bracket close to the reciprocating screw, and the buffer positioning assembly is composed of a buffer spring and a positioning bolt.

[0018] Preferably, the bending detection mechanism comprises a rotating positioning bracket fixed to the top of the test bench, a power-on detection oscilloscope is arranged on the top of the left rotating positioning bracket, and a liquid-cooled detection measuring cylinder is arranged on the side of the right rotating positioning bracket away from the clamping bracket.

[0019] Preferably, the right side of the right rotating positioning bracket is connected with a liquid cooling detection three-way valve and a liquid cooling detection three-way pipe, and the liquid cooling detection measuring cylinder is rotatably connected to the inner wall of the liquid cooling detection three-way pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In view of the problem that the fixed-position bending method is adopted in the existing charging pile cable bending test mentioned above, when replacing the detection part of the charging pile cable, it is necessary to loosen the clamping device and move it to the next detection part, which leads to cumbersome operation, a reciprocating servo motor, a reciprocating screw and an adjustment module and other devices cooperate with each other. When it is necessary to replace the bending part of the charging pile cable or perform bending fatigue detection on it, the reciprocating servo motor is started to drive the reciprocating screw to rotate, so that the adjustment module rotates synchronously, thereby driving the cable winding part wound on the outer surface of the arc-shaped fitting slider to move through the winding adjustment sleeve, so as to achieve the effect of conveniently replacing the detection part of the charging pile cable bending test.

[0022] 2. In view of the problem mentioned above that when the charging pile cable is bent by a fixed-position bending device, the bending amplitude and twisting degree of the cable cannot be adjusted, resulting in relatively single bending test data, an adjusting motor, an adjusting screw and an adjusting cone are arranged to cooperate with each other, and the adjusting motor is started to drive the adjusting screw to rotate, so that the conical surface driving slider that touches and connects to the top of the adjusting cone is extended and retracted accordingly, thereby changing the diameter of the arc-shaped fitting circle surrounded by the arc-shaped fitting slider, that is, changing the winding diameter of the arc-shaped fitting circle. During this period, the position of the clamping bracket can be adjusted by horizontally sliding, and after the charging pile cable is twisted to a specified number of circles, the position of the clamping bracket can be positioned by rotating the positioning bolt, thereby achieving the effect of conveniently adjusting the bending amplitude and twisting degree of the charging pile cable during the bending test.

[0023] 3. With regard to the above-mentioned liquid-cooled charging pile cable, it is not possible to visually detect whether the heat dissipation performance of the liquid cooling tube is affected when it is bent by only detecting whether the cable is normally energized. By providing a liquid cooling detection measuring cylinder, a liquid cooling detection three-way valve, a liquid cooling detection three-way pipe and other devices to cooperate with each other, when checking whether the liquid cooling tube of the charging pile cable is blocked during the bending test, a detection liquid is injected into the liquid cooling tube through the liquid cooling detection three-way pipe, and during the movement of the winding adjustment sleeve, the pressure of the detection liquid is observed through the liquid cooling detection measuring cylinder on the top, and after the bending test, the channel connecting the liquid cooling detection three-way pipe with the outside world is opened to connect the top of the bottom liquid cooling detection measuring cylinder with the outside world, and then all the detection liquid flows into the bottom liquid cooling detection measuring cylinder. By observing the volume of the detection liquid, it can be known whether the liquid cooling tube is leaking during the bending test, thereby achieving the effect of intuitively and conveniently detecting the heat dissipation performance of the liquid cooling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a charging pile cable bending strength test device proposed by the present invention;

[0025] Figure 2 This is a structural exploded view of a bending adjustment mechanism, a twisting adjustment mechanism and a bending detection mechanism of a charging pile cable bending strength test device proposed by the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0027] Figure 4 This is an exploded view of the structure of the adjusting component of the bending adjustment mechanism of the charging pile cable bending strength test device proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the cross section of a coiled adjustment sleeve of a charging pile cable bending strength test device proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of a liquid-cooled detection measuring cylinder of a charging pile cable bending strength test device proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the coiled state of the charging pile cable body of the charging pile cable bending strength test device proposed by the present invention.

[0031] In the figure: 1. Test bench; 11. Fixing sleeve at the gun head end; 12. Fixing sleeve at the connecting end; 2. Adjusting module; 21. Coiled adjusting sleeve; 22. Arc fitting ring; 221. Arc fitting slider; 222. Conical driving slider; 23. Adjusting limit ring; 24. Adjusting motor; 241. Adjusting screw; 242. Adjusting cone; 3. Reciprocating servo motor; 31. Reciprocating screw; 4. Clamping bracket; 41. Twisted driving column; 42. Twisted arc groove; 43. Buffer spring; 44. Positioning bolt; 5. Rotating positioning bracket; 51. Power-on detection oscilloscope; 52. Liquid-cooled detection measuring cylinder; 53. Liquid-cooled detection three-way valve; 54. Liquid-cooled detection three-way pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 7 A charging pile cable bending strength test device comprises a test bench 1 for a charging pile cable body bending test, a clamping component for fixing the non-cable parts of the two ends of the charging pile cable body is arranged on the top of the test bench 1, and the clamping component is composed of a gun head end fixing sleeve 11 and a connection end fixing sleeve 12, a bending simulation unit is arranged on the top of the test bench 1, and the bending simulation unit is composed of a bending adjustment mechanism and a twisting simulation mechanism, and the bending adjustment mechanism is used to adjust the bending part and bending amplitude of the charging pile cable body, and a bending detection mechanism is arranged on the top of the test bench 1 on the outside of the bending simulation unit, and the bending detection mechanism is used to detect the bending strength of the charging pile cable body during the bending test.

[0034] Through the above technical scheme, the gun tip end fixing sleeve 11 and the connection end fixing sleeve 12 are rotatably connected to the inner wall of the rotating positioning bracket 5, and can rotate together with the twisted cable during the cable twisting simulation, and the interior of the gun tip end fixing sleeve 11 and the connection end fixing sleeve 12 are provided with existing clamping stabilization components such as lathe clamps, which can clamp the gun tip end and the connection end of the charging pile cable.

[0035] like Figure 4 As shown, the bending adjustment mechanism is composed of an adjustment component and a driving component. The adjustment component includes an adjustment module 2 that slides on the top of the test bench 1. A coiled adjustment sleeve 21 is fixedly installed on the top of the adjustment module 2. An arc-shaped fitting ring 22 is arranged on the top of the coiled adjustment sleeve 21. The arc-shaped fitting ring 22 is surrounded by a plurality of arc-shaped fitting sliders 221.

[0036] Through the above technical scheme, an adjustment limit ring 23 is provided on one side of the arc-shaped fitting ring 22 close to the axis of the winding adjustment sleeve 21, the bottom of the adjustment limit ring 23 is rotatably connected to the top of the winding adjustment sleeve 21, the arc-shaped fitting slider 221 is slidably connected to the inner wall of the adjustment limit ring 23 through the winding connecting rod, and a winding twisting groove is opened at the bottom of the arc-shaped fitting slider 221.

[0037] Based on the above, when the bending amplitude of the charging pile cable needs to be adjusted, the adjusting motor 24 is started to drive the adjusting screw 241 to rotate, so that the adjusting cone 242 is lifted and lowered along the inner wall of the coiled adjusting sleeve 21, thereby changing the diameter of the arc-shaped fitting circle 22 formed by multiple arc-shaped fitting sliders 221, and changing the bending amplitude of the charging pile cable coiled outside the arc-shaped fitting circle 22, thereby completing the process of adjusting the bending amplitude of the charging pile cable bending test.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the driving component includes a reciprocating servo motor 3 arranged on the side of the test bench 1 and a spiral telescopic control assembly arranged inside the adjusting module 2. The output shaft of the reciprocating servo motor 3 is fixed with a reciprocating screw 31 that is transmission-connected to the adjusting module 2. The spiral telescopic control assembly consists of an adjusting motor 24, an adjusting screw 241 and an adjusting cone 242. The adjusting screw 241 is fixed to the top of the output shaft of the adjusting motor 24, and the adjusting cone 242 is slidably connected to the inner wall of the coiled adjusting sleeve 21 by being threadedly connected to the adjusting screw 241.

[0039] Through the above technical solution, a conical driving slider 222 is provided on one side of the arc-shaped fitting slider 221 close to the axis of the coiled adjustment sleeve 21 , and the bottom of the conical driving slider 222 is movably connected to the top of the adjustment cone 242 .

[0040] Based on the above, when it is necessary to perform a bending fatigue test on the charging pile cable body, the reciprocating servo motor 3 is started to drive the reciprocating screw 31 to rotate, and the adjustment module 2 is driven to reciprocate linearly, so as to continuously change the bending part of the charging pile cable coiled outside the arc-shaped fitting circle 22, thereby achieving the effect of conveniently replacing the bending part of the bending test.

[0041] like Figure 2 and Figure 3 As shown, the twisting simulation mechanism includes a clamping bracket 4 sliding on the top of the test bench 1, a twisting driving column 41 is fixed to the inner wall of the clamping bracket 4, and a twisting arc groove 42 is provided on the outer surface of the fixing sleeve 11 at the gun head end and the fixing sleeve 12 at the connecting end for sliding connection with the twisting driving column 41, and the twisting directions of the twisting arc grooves 42 at both ends are opposite.

[0042] Through the above technical solution, a buffer positioning assembly is provided on the side of the clamping bracket 4 close to the reciprocating screw 31, and the buffer positioning assembly is composed of a buffer spring 43 and a positioning bolt 44. After the clamping bracket 4 moves to the specified position on the top of the test bench 1, the position of the clamping bracket 4 can be locked by rotating the positioning bolt 44, thereby locking the rotational twisting angle of the gun head end fixing sleeve 11 and the connecting end fixing sleeve 12.

[0043] Based on the above, by moving the clamping bracket 4 on the top of the test bench 1, the fixing sleeve 11 at the gun head end and the fixing sleeve 12 at the connection end are driven to rotate, so that the charging pile cable rotates synchronously, generating corresponding twisting force thereon.

[0044] like Figure 2 and Figure 6 As shown, the bending detection mechanism includes a rotating positioning bracket 5 fixed to the top of the test bench 1, a power-on detection oscilloscope 51 is arranged on the top of the left rotating positioning bracket 5, and a liquid-cooled detection measuring cylinder 52 is arranged on the side of the right rotating positioning bracket 5 away from the clamping bracket 4, and two liquid-cooled detection measuring cylinders 52 are arranged, which are respectively located at the liquid inlet and the liquid outlet of the liquid cooling tube.

[0045] Through the above technical solution, the right side of the right rotating positioning bracket 5 is connected with a liquid cooling detection three-way valve 53 and a liquid cooling detection three-way pipe 54 , and the liquid cooling detection measuring cylinder 52 is rotatably connected to the inner wall of the liquid cooling detection three-way pipe 54 .

[0046] Based on the above, the charging pile cable gun tip end and the connection end are powered on, and after the twisting simulation is completed, the power-on state of the gun tip end is detected by the power-on detection oscilloscope 51, and the internal liquid level height of the liquid cooling detection cylinder 52 is used to detect whether the charging pile cable is blocked or leaked during the bending process;

[0047] Based on the above, when checking whether the liquid cooling tube of the charging pile cable is blocked during the bending test, the detection liquid is injected into the liquid cooling tube through the liquid cooling detection three-way tube 54, and during the movement of the winding adjustment sleeve 21, the liquid cooling detection three-way valve 53 is used to close the channel connecting the liquid cooling detection three-way tube 54 with the outside world, and then the pressure of the detection liquid is observed through the closed liquid cooling detection measuring cylinder 52. After the bending test, the channel connecting the liquid cooling detection three-way tube 54 with the outside world is opened so that the top of the liquid cooling detection measuring cylinder 52 is connected to the outside world, and then all the detection liquid flows into the liquid cooling detection measuring cylinder 52. By observing the volume of the detection liquid, it can be known whether the liquid cooling tube is leaking during the bending test.

[0048] When the present invention performs a bending strength test on the charging pile cable, the gun head end and the connection end of the charging pile cable body are fixed in the gun head end fixing sleeve 11 and the connection end fixing sleeve 12 by a clamping component, and the charging pile cable is coiled around the arc-shaped fitting ring 22 for one circle, thereby completing the installation process of the charging pile cable in the bending test;

[0049] Next, when the charging pile cable body needs to be subjected to a bending fatigue test, the reciprocating servo motor 3 is started to drive the reciprocating screw 31 to rotate, and the adjusting module 2 is driven to perform linear reciprocating motion, so that the bending part of the charging pile cable wound outside the arc-shaped fitting ring 22 is continuously changed, thereby achieving the effect of conveniently replacing the bending part of the bending test;

[0050] Based on the above, when the bending amplitude of the charging pile cable needs to be adjusted, the adjusting motor 24 is started to drive the adjusting screw 241 to rotate, so that the adjusting cone 242 is lifted and lowered along the inner wall of the winding adjusting sleeve 21, so that the diameter of the arc-shaped fitting circle 22 surrounded by the multiple arc-shaped fitting sliders 221 is changed, so that the bending amplitude of the charging pile cable wound outside the arc-shaped fitting circle 22 is changed, thereby achieving the effect of conveniently adjusting the bending amplitude of the charging pile cable bending test;

[0051] Based on the above, during the bending process of the charging pile cable, the two ends of the charging pile cable are limited by the fixing sleeve 11 at the gun head end and the fixing sleeve 12 at the connection end, so that the cable generates a thrust for the arc-shaped fitting slider 221 to move toward the axis of the winding adjustment sleeve 21, thereby cooperating with the lifting and lowering of the adjustment cone 242, and can drive the conical driving slider 222 to extend and retract along the slide groove opened on the inner wall of the adjustment limit ring 23;

[0052] Based on the above, when the degree of twisting of the charging pile cable needs to be adjusted, the charging pile cable is driven to rotate by moving the position of the clamping bracket 4 on the top of the test bench 1 to generate a twisting force, and after twisting, the position of the clamping bracket 4 is positioned by rotating the positioning bolt 44 to complete the process of adjusting the bending position, bending amplitude and degree of twisting of the charging pile cable during the bending process;

[0053] Then, during the bending test of the charging pile cable, the bending strength of the cable is tested by a bending detection mechanism, and the detection principle is as follows: the charging pile cable gun head end and the connection end are powered on, and after the twisting simulation is completed, the power-on state of the gun head end is detected by a power-on detection oscilloscope 51, and whether the charging pile cable is blocked or leaked during the bending process is detected by the internal liquid level height of the liquid-cooled detection measuring cylinder 52, thereby completing a convenient detection process of the cable bending strength during the charging pile cable bending test;

[0054] Based on the above, when checking whether the liquid cooling pipe of the charging pile cable is blocked during the bending test, the testing liquid is injected into the liquid cooling pipe through the liquid cooling testing tee 54, and during the movement of the winding adjustment sleeve 21, the liquid cooling testing tee 54 is closed through the liquid cooling testing tee valve 53. The channel connecting the liquid cooling testing tee 54 with the outside world is then closed through the closed liquid cooling testing measuring cylinder 52. The pressure of the testing liquid is then observed, and after the bending test is completed, the channel connecting the liquid cooling testing tee 54 with the outside world is opened, so that the top of the liquid cooling testing measuring cylinder 52 is connected to the outside world, and then all the testing liquid flows into the liquid cooling testing measuring cylinder 52. By observing the volume of the testing liquid, it can be known whether the liquid cooling pipe is leaking during the bending test.

[0055] Based on the above, when detecting whether the liquid cooling pipe of the charging pile cable is blocked, the liquid cooling detection cylinder 52 at the top is vertically upward, and the liquid cooling detection cylinder 52 at the bottom is in a closed state. When detecting whether the liquid cooling pipe of the charging pile cable is leaking, on the contrary, the liquid cooling detection cylinder 52 at the bottom is connected to the liquid cooling pipe and is vertically downward, so that the height of the liquid column in the liquid cooling detection cylinder 52 can be used to conveniently determine whether the heat dissipation performance of the liquid cooling pipe, that is, the sealing and fluidity of the pipe, is affected during the bending test, thereby achieving the effect of intuitively and conveniently detecting the heat dissipation performance of the liquid cooling pipe.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A charging pile cable bending strength test device, comprising a test bench (1) for a charging pile cable body bending test, wherein the top of the test bench (1) is provided with a clamping component for fixing the non-cable parts of the two ends of the charging pile cable body, wherein the clamping component is composed of a gun head end fixing sleeve (11) and a connection end fixing sleeve (12), and is characterized in that: A bending simulation unit is arranged on the top of the test bench (1), the bending simulation unit is composed of a bending adjustment mechanism and a twisting simulation mechanism, the bending adjustment mechanism is used to adjust the bending position and bending amplitude of the charging pile cable body; The bending adjustment mechanism is composed of an adjustment component and a driving component, wherein the adjustment component comprises an adjustment module (2) sliding on the top of the test bench (1), a coiled adjustment sleeve (21) being fixedly mounted on the top of the adjustment module (2), an arc-shaped fitting ring (22) being arranged on the top of the coiled adjustment sleeve (21), and the arc-shaped fitting ring (22) being surrounded by a plurality of arc-shaped fitting sliding blocks (221); An adjustment limit ring (23) is provided on one side of the arc-shaped fitting ring (22) close to the axis of the winding adjustment sleeve (21); the bottom of the adjustment limit ring (23) is rotatably connected to the top of the winding adjustment sleeve (21); the arc-shaped fitting slider (221) is slidably connected to the inner wall of the adjustment limit ring (23) via a winding connecting rod; and a winding twisting groove is provided at the bottom of the arc-shaped fitting slider (221); The driving component comprises a reciprocating servo motor (3) arranged on the side of the test bench (1) and a spiral telescopic control component arranged inside the adjustment module (2); the output shaft of the reciprocating servo motor (3) is fixed with a reciprocating screw (31) drivingly connected to the adjustment module (2); the spiral telescopic control component comprises an adjustment motor (24), an adjustment screw (241) and an adjustment cone (242); the adjustment screw (241) is fixed to the top of the output shaft of the adjustment motor (24); and the adjustment cone (242) is slidably connected to the inner wall of the coiled adjustment sleeve (21) by being threadedly connected to the adjustment screw (241); A conical driving slider (222) is provided on one side of the arc-shaped fitting slider (221) close to the axis of the coiled adjustment sleeve (21), and the bottom of the conical driving slider (222) is movably connected to the top of the adjustment cone (242); The twist simulation mechanism comprises a clamping bracket (4) sliding on the top of the test bench (1), a twist driving column (41) being fixed to the inner wall of the clamping bracket (4), and a twist arc groove (42) slidably connected to the twist driving column (41) is formed on the outer surfaces of the gun head end fixing sleeve (11) and the connection end fixing sleeve (12); A bending detection mechanism located outside the bending simulation unit is arranged on the top of the test bench (1), and is used to detect the bending strength of the charging pile cable body during a bending test.

2. A charging pile cable bending strength test device according to claim 1, characterized in that: A buffer positioning assembly is provided on one side of the clamping bracket (4) close to the reciprocating screw (31), and the buffer positioning assembly is composed of a buffer spring (43) and a positioning bolt (44).

3. A charging pile cable bending strength test device according to claim 1, characterized in that: The bending detection mechanism comprises a rotating positioning bracket (5) fixed to the top of the test bench (1), a power-on detection oscilloscope (51) being arranged on the top of the left rotating positioning bracket (5), and a liquid-cooled detection measuring cylinder (52) being arranged on the side of the right rotating positioning bracket (5) away from the clamping bracket (4).

4. A charging pile cable bending strength test device according to claim 3, characterized in that: The right side of the right rotating positioning bracket (5) is connected to a liquid cooling detection three-way valve (53) and a liquid cooling detection three-way pipe (54), and the liquid cooling detection measuring cylinder (52) is rotatably connected to the inner wall of the liquid cooling detection three-way pipe (54).

Images