Charging cable fatigue detection test device

Abstract

The utility model relates to the technical field of cable fatigue detection test devices, and particularly discloses a charging cable fatigue detection test device, which comprises two main frame bodies, a bearing track and a detection mechanism, and is characterized in that the bearing track is fixedly mounted between the two main frame bodies; the detection mechanism comprises a sliding assembly, a rotating assembly and a clamping assembly, the clamping assembly is fixedly connected with the rotating assembly, the clamping assembly is used for fixing and pulling the charging cable up and down, and the rotating assembly is used for achieving the rotating action of the detection mechanism; the sliding assembly is fixedly connected to the end, away from the clamping assembly, of the rotating assembly, the sliding assembly is slidably installed in the bearing rail, and the sliding assembly drives the rotating assembly and the clamping assembly to slide in the length direction of the bearing rail. According to the invention, multi-dimensional comprehensive fatigue detection of horizontal pulling, vertical pulling, torsion and the like of the charging cable can be realized at the same time, and the comprehensiveness and accuracy of a detection result can be improved.

Description

Technical Field

[0001] This application relates to the technical field of cable fatigue testing equipment, and in particular to a fatigue testing equipment for charging cables. Background Technology

[0002] As a key component of power transmission, cables are increasingly widely used in power transmission, communication, automobile manufacturing and other fields. In particular, with the rapid popularization of new energy vehicles, the performance requirements for charging cables are increasing, especially the durability and reliability during long-term use.

[0003] In actual charging, users often pull or twist the charging cable to plug and unplug it. Long-term repeated stress can easily cause fatigue damage inside the charging cable, leading to poor contact, short circuits, or even safety accidents.

[0004] However, conventional methods in existing technologies mostly focus on detecting a single direction or movement, and cannot simultaneously achieve comprehensive fatigue testing of charging cables in multiple dimensions (such as horizontal pulling, vertical pulling, and torsion). This results in a lack of comprehensiveness and accuracy in the test results, making it difficult to meet the needs of practical applications. Utility Model Content

[0005] In order to enable comprehensive fatigue testing of charging cables from multiple dimensions and improve the comprehensiveness and accuracy of the test results, this application provides a fatigue testing device for charging cables.

[0006] This application provides a fatigue testing device for charging cables, which adopts the following technical solution:

[0007] A fatigue testing device for charging cables includes a main frame, a support rail, and a testing mechanism. Two main frames are connected at their upper ends. A control system is installed within each main frame. The support rail is fixedly installed between the two main frames. The testing mechanism includes a sliding component, a rotating component, and a clamping component. The clamping component is fixedly connected to the rotating component and is used to fix and pull the charging cable up and down. The rotating component drives the clamping component to rotate. The sliding component is fixedly connected to the end of the rotating component away from the clamping component and is slidably installed in the support rail. The sliding component drives the rotating component and the clamping component to slide along the length of the support rail.

[0008] By adopting the above technical solution, the charging cable is fixed in the clamping assembly. The clamping assembly pulls the charging cable up and down to achieve vertical pulling of the charging cable; the sliding assembly drives the rotating assembly and the clamping assembly to slide along the length of the bearing track to achieve horizontal pulling of the charging cable; while the rotating assembly rotates, the clamping assembly pulls the charging cable up and down, which can simulate the user's pulling action on the charging cable and achieve torsion of the charging cable; through the cooperation of the sliding assembly, rotating assembly and clamping assembly, comprehensive fatigue testing of the charging cable in multiple dimensions (horizontal pulling, vertical pulling and torsion) can be achieved simultaneously, which helps to improve the comprehensiveness and accuracy of the test results.

[0009] Optionally, the sliding assembly includes a sliding drum, a roller assembly, and a connecting bracket. The sliding drum and the roller assembly are respectively fixedly connected to the connecting bracket. The roller assembly is slidably installed in the bearing rail. The sliding drum drives the roller assembly to slide along the length direction of the bearing rail. The end of the connecting bracket away from the roller assembly is fixedly connected to the rotating assembly.

[0010] By adopting the above technical solution, the sliding drum is controlled to drive the roller assembly to slide along the length of the bearing track, thereby driving the rotating component and the clamping component to move synchronously, thus realizing the clamping component pulling the charging cable in the horizontal direction.

[0011] Optionally, a steel wire rope is wound in the sliding drum, and the steel wire rope extends from both ends of the sliding drum and is fixed in the main frame on both sides.

[0012] By adopting the above technical solution, the tension on both sides controls the position of the sliding drum on the wire rope, driving the detection mechanism to slide along the bearing track. The structure is simple and the sliding is smooth, which helps to improve the accuracy of the detection results.

[0013] Optionally, the rotating assembly includes a motor, a rotating gear, a fixed gear, a mounting plate, and a fixed plate. The rotating gear meshes with the fixed gear, and the axis of the rotating gear and the axis of the fixed gear are respectively perpendicular to the length direction of the bearing rail. The fixed gear is fixedly connected to the connecting bracket, and the motor drives the rotating gear to move along the circumference of the fixed gear. The mounting plate is rotatably mounted on the end of the fixed gear away from the connecting bracket, and the end of the mounting plate away from the fixed gear is fixedly connected to the clamping assembly. The motor is fixedly connected to the mounting plate through the fixed plate, and the fixed plate and the mounting plate rotate synchronously with the rotating gear.

[0014] By adopting the above technical solution, the gear transmission method has smaller errors and higher accuracy. When rotating, the motor drives the rotating gear to move around the circumference of the fixed gear, which drives the fixed plate and the mounting plate to rotate synchronously around the axis of the fixed gear. This allows the clamping component to rotate while pulling the charging cable up and down, simulating the user's pulling action on the charging cable and realizing the torsion of the charging cable.

[0015] Optionally, the clamping assembly includes a support frame, a cylinder, and a bearing arm. The support frame is fixedly installed on the end of the mounting plate away from the fixed gear. The bearing arm is hinged to the end of the support frame away from the mounting plate. A clamping block for clamping the charging cable is fixedly connected to the bearing arm. One end of the cylinder is hinged to the bearing arm, and the other end of the cylinder is hinged to the mounting plate. The cylinder drives the bearing arm to move up and down.

[0016] By adopting the above technical solution, the charging cable is clamped in the clamping block, and the cylinder moves up and down to drive the bearing arm to move up and down, thereby realizing the up and down movement of the charging cable. The structure is simple, and the position is accurate and the movement is stable during the up and down movement, resulting in good accuracy of the test results.

[0017] Optionally, the support frame includes support plates and support columns. There are two support plates and at least two support columns. The two support plates are fixedly connected to both ends of the support columns. The support plate at one end of the support column is fixedly connected to the mounting plate, and the support plate at the other end of the support column is hinged to the load-bearing arm.

[0018] By adopting the above technical solution, the support frame can reduce the weight of the equipment and lower production costs through support plates and support columns.

[0019] Optionally, there are three support columns, which are distributed in an equilateral triangle.

[0020] By adopting the above technical solution, the support frame has stronger resistance to deformation when the equilateral triangle distribution is used, thus ensuring the stability and reliability of the support frame structure.

[0021] Optionally, the clamping block is located at the end of the bearing arm away from the support frame.

[0022] By adopting the above technical solution, the clamping block is located at the end of the bearing arm away from the support frame, making the displacement of the clamping block when it moves up and down more obvious and the measurement accuracy higher.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The clamping component pulls the charging cable up and down to achieve vertical pulling of the charging cable; the sliding component drives the rotating component and the clamping component to slide along the length of the bearing track to achieve horizontal pulling of the charging cable; while the rotating component rotates, the clamping component pulls the charging cable up and down, which can simulate the user's pulling action on the charging cable and achieve torsion of the charging cable; through the cooperation of the sliding component, rotating component and clamping component, comprehensive fatigue testing of the charging cable in multiple dimensions (horizontal pulling, vertical pulling and torsion) can be achieved simultaneously, which helps to improve the comprehensiveness and accuracy of the test results;

[0025] 2. The vertical movement is achieved by a cylinder, which has a simple structure and provides precise positioning and stable movement during the vertical movement, resulting in high accuracy of the test results;

[0026] 3. By setting the support frame to connect the support plate and the support column, the weight of the equipment can be reduced, and the production cost can be lowered. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the bearing track and the detection mechanism in this application;

[0029] Figure 3 This is a structural diagram of the testing facility in this application when the load-bearing arm is raised;

[0030] Figure 4 This is an exploded view of the rotating assembly and connecting bracket in this application;

[0031] Figure 5 This is a structural diagram of the testing institution in this application when the load-bearing arm is lowered.

[0032] Reference numerals: 1. Main frame; 2. Bearing rail; 3. Detection mechanism; 31. Sliding assembly; 311. Sliding drum; 312. Roller assembly; 313. Connecting bracket; 32. Rotating assembly; 321. Motor; 322. Rotating gear; 323. Fixed gear; 324. Mounting plate; 325. Fixed plate; 33. Clamping assembly; 331. Support frame; 332. Cylinder; 333. Bearing arm; 334. Clamping block; 335. Support plate; 336. Support column; 4. Charging cable. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a fatigue testing device for charging cables, and this application uses an 8m long charging cable 4 as an example for illustration. (Refer to...) Figure 1 and Figure 2 It includes a main frame 1, a bearing rail 2, and a testing mechanism 3. There are two main frames 1 connected at their upper ends. A control system is installed in the main frame 1. The bearing rail 2 is fixedly installed between the two main frames 1. The testing mechanism 3 is slidably installed on the bearing rail 2. The testing mechanism 3 is used to perform multi-dimensional comprehensive fatigue testing on the charging cable 4.

[0035] The detection mechanism 3 includes a sliding component 31, a rotating component 32, and a clamping component 33. The clamping component 33 is fixedly connected to the rotating component 32. The clamping component 33 is used to fix and pull the charging cable 4. The rotating component 32 is used to realize the rotation of the detection mechanism 3. The sliding component 31 is fixed to the end of the rotating component 32 away from the clamping component 33. The sliding component 31 is slidably installed in the bearing rail 2. The sliding component 31 can drive the rotating component 32 and the clamping component 33 to slide along the length of the bearing rail 2.

[0036] During testing, one end of the charging cable 4 is installed on the upper end of the main frame 1, and the other end of the charging cable 4 is installed on the lower end of another main frame 1. The charging cable 4 is then fixed in the testing mechanism 3. The control system controls the sliding component 31, the rotating component 32, and the clamping component 33 to cooperate with each other, which can simulate horizontal pulling, vertical pulling, and torsion movements of the charging cable 4, thereby achieving comprehensive fatigue testing of the charging cable 4 in multiple dimensions.

[0037] Reference Figure 2 and Figure 3 The sliding assembly 31 includes a sliding drum 311, a roller assembly 312, and a connecting bracket 313. The sliding drum 311 is fixedly connected to the connecting bracket 313. A steel wire rope is wound around the sliding drum 311, and the steel wire rope extends from both ends of the sliding drum 311 and is fixed to the main frame 1 on both sides. The bearing rail 2 includes two rails, and the roller assembly 312 is symmetrically installed at both ends of the connecting bracket 313, and the roller assembly 312 is slidably installed in the bearing rail 2. The sliding drum 311 and the roller assembly 312 are both located on the same side of the connecting bracket 313. By controlling the tension on both sides, the position of the sliding drum 311 on the steel wire rope is changed, thereby pulling the roller assembly 312 to slide along the length direction of the bearing rail 2. At the same time, the roller assembly 312 supports the detection mechanism 3 above the bearing rail 2.

[0038] Reference Figure 3 and Figure 4The rotating assembly 32 includes a motor 321, a fixed gear 323, a rotating gear 322, a mounting plate 324, and a fixing plate 325. The axis of the rotating gear 322 and the axis of the fixed gear 323 are perpendicular to the length direction of the bearing track 2, and the rotating gear 322 meshes with the fixed gear 323. The output end of the motor 321 extends into the rotating gear 322. Different types of motors 321 can be selected according to requirements.

[0039] One end of the mounting plate 324 has a protruding ball bearing, and the fixed gear 323 is sleeved around the ball bearing, thereby enabling the fixed gear 323 to be rotated and mounted on the mounting plate 324. Simultaneously, the fixed gear 323 is bolted to the end of the connecting bracket 313 away from the sliding drum 311. The end of the mounting plate 324 away from the fixed gear 323 is fixedly connected to the clamping assembly 33, and the motor 321 is connected to the mounting plate 324 via the fixing plate 325. During rotation, the motor 321 drives the rotating gear 322 to move along the circumference of the fixed gear 323. The rotating gear 322, through the fixing plate 325, drives the mounting plate 324 to rotate synchronously, thereby causing the clamping assembly 33 to rotate. The rotation axes are all along the axis of the fixed gear 323.

[0040] Reference Figure 3 and Figure 5 The clamping assembly 33 includes a support frame 331, a cylinder 332, and a bearing arm 333. The support frame 331 is fixedly installed on the end of the mounting plate 324 away from the fixed gear 323. The bearing arm 333 is hinged to the end of the support frame 331 away from the mounting plate 324 via a triangular bracket. A clamping block 334 is fixedly connected to the end of the bearing arm 333 away from the hinge point, and the charging cable 4 is clamped in the clamping block 334. One end of the cylinder 332 is hinged to the bearing arm 333, and the other end is hinged to the mounting plate 324 via a triangular bracket. When the cylinder 332 is working, it drives the bearing arm 333 to move up and down, thereby achieving the effect of pulling the charging cable 4 up and down.

[0041] The support frame 331 includes a support column 336 and two support plates 335. The two support plates 335 are arranged in parallel and are integrally formed at both ends of the support column 336. There are three support columns 336, which are distributed in an equilateral triangle. This not only ensures the stability of the support frame 331 structure, but also reduces the weight of the test device and lowers the production cost.

[0042] During testing, the charging cable 4 is installed between the two main frames 1 and clamped in the clamping block 334. The control system controls the sliding drum 311 to move along the length of the bearing track 2 through bidirectional tension, changing the position of the testing mechanism 3 on the bearing track 2, so that the clamping block 334 pulls the charging cable 4 horizontally, thus achieving horizontal pulling of the charging cable 4. By controlling the reciprocating motion of the cylinder 332, the bearing arm 333 is driven to move up and down, so that the clamping block 334 pulls the charging cable 4 up and down, thus achieving vertical pulling of the charging cable 4. By controlling the motor 321 to drive the rotating gear 322 to rotate around the fixed gear 323, the bearing arm 333 is driven to rotate around the axis of the fixed gear 323. At the same time, the reciprocating motion of the cylinder 332 can simulate the user's pulling action on the charging cable 4, thus achieving the torsion of the charging cable 4. Through the cooperation of the sliding component 31, the rotating component 32, and the clamping component 33, multi-dimensional fatigue testing of the charging cable 4 is achieved, which helps to improve the comprehensiveness and accuracy of the test results.

[0043] The implementation principle of the charging cable fatigue testing device disclosed in this application is as follows: the clamping component 33 is used to fix and pull the charging cable 4, the rotating component 32 is used to realize the rotation action of the testing mechanism 3, and the sliding component 31 can drive the rotating component 32 and the clamping component 33 to slide along the length direction of the bearing track 2; through the cooperation of the sliding component 31, the rotating component 32 and the clamping component 33, the charging cable 4 can be simulated with horizontal pulling, vertical pulling and torsion, etc., to realize comprehensive fatigue testing of the charging cable 4 in multiple dimensions of horizontal pulling, vertical pulling and torsion, and improve the comprehensiveness and accuracy of the test results.

[0044] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fatigue testing device for charging cables, characterized in that, The system includes a main frame (1), a bearing rail (2), and a detection mechanism (3). There are two main frames (1), and the upper ends of the two main frames (1) are connected together. A control system is provided in the main frame (1). The bearing rail (2) is fixedly installed between the two main frames (1). The detection mechanism (3) includes a sliding component (31), a rotating component (32), and a clamping component (33). The clamping component (33) is fixedly connected to the rotating component (32). The clamping component (33) is used to fix and pull the charging cable (4) to move up and down. The rotating component (32) is used to drive the clamping component (33) to rotate. The sliding component (31) is fixedly connected to the end of the rotating component (32) away from the clamping component (33). The sliding component (31) is slidably installed in the bearing rail (2). The sliding component (31) drives the rotating component (32) and the clamping component (33) to slide along the length direction of the bearing rail (2).

2. The fatigue testing device for charging cables according to claim 1, characterized in that, The sliding assembly (31) includes a sliding drum (311), a roller assembly (312), and a connecting bracket (313). The sliding drum (311) and the roller assembly (312) are fixedly connected to the connecting bracket (313). The roller assembly (312) is slidably installed in the bearing rail (2). The sliding drum (311) drives the roller assembly (312) to slide along the length direction of the bearing rail (2). The end of the connecting bracket (313) away from the roller assembly (312) is fixedly connected to the rotating assembly (32).

3. The fatigue testing device for charging cables according to claim 2, characterized in that, The sliding drum (311) is wound with steel wire ropes, which extend from both ends of the sliding drum (311) and are fixed in the main frame (1) on both sides.

4. The fatigue testing device for charging cables according to claim 2, characterized in that, The rotating assembly (32) includes a motor (321), a rotating gear (322), a fixed gear (323), a mounting plate (324), and a fixing plate (325). The rotating gear (322) meshes with the fixed gear (323). The axis of the rotating gear (322) and the axis of the fixed gear (323) are perpendicular to the length direction of the bearing rail (2), respectively. The fixed gear (323) is fixedly connected to the connecting bracket (313). The motor (321) drives the rotation. The gear (322) moves around the fixed gear (323); the mounting plate (324) is rotatably mounted on the end of the fixed gear (323) away from the connecting bracket (313), and the end of the mounting plate (324) away from the fixed gear (323) is fixedly connected to the clamping assembly (33); the motor (321) is fixedly connected to the mounting plate (324) through the fixing plate (325), and the fixing plate (325) and the mounting plate (324) rotate synchronously with the rotating gear (322).

5. The fatigue testing device for charging cables according to claim 4, characterized in that, The clamping assembly (33) includes a support frame (331), a cylinder (332), and a support arm (333). The support frame (331) is fixedly installed on the end of the mounting plate (324) away from the fixed gear (323). The support arm (333) is hinged to the end of the support frame (331) away from the mounting plate (324). A clamping block (334) for clamping the charging cable (4) is fixedly connected to the support arm (333). One end of the cylinder (332) is hinged to the support arm (333), and the other end of the cylinder (332) is hinged to the mounting plate (324). The cylinder (332) drives the support arm (333) to move up and down.

6. The fatigue testing device for charging cables according to claim 5, characterized in that, The support frame (331) includes a support plate (335) and a support column (336). There are two support plates (335) and at least two support columns (336). The two support plates (335) are fixedly connected to both ends of the support column (336). The support plate (335) at one end of the support column (336) is fixedly connected to the mounting plate (324), and the support plate (335) at the other end of the support column (336) is hinged to the bearing arm (333).

7. The fatigue testing device for charging cables according to claim 6, characterized in that, There are three support columns (336), and the three support columns (336) are distributed in an equilateral triangle.

8. The fatigue testing device for charging cables according to claim 5, characterized in that, The clamping block (334) is located at the end of the bearing arm (333) away from the support frame (331).

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