A power fitting abrasion test device
By using a cylinder-driven connecting rod and clamping plate structure, combined with a servo motor and worm gear transmission, the problem of unstable clamping in the power fitting wear testing device is solved, achieving stable clamping and positioning of power fittings, and ensuring the stability and reliability of the wear test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YUEJUN ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-06-26
Smart Images

Figure CN224416636U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wear testing equipment, and in particular relates to a wear testing device for power fittings. Background Technology
[0002] Power fittings are metal accessories that connect and combine various devices in a power system, serving to transmit mechanical loads, electrical loads, and provide certain protective functions. When testing the wear of power fittings, they need to be fixed by clamping devices.
[0003] In a test device for an electrical fitting wear tester disclosed in patent application number CN201921707701.3, the fitting to be tested is fixed by a spring, which has a poor clamping effect. During the rotation test, the fitting is easily thrown off due to insufficient clamping force. Utility Model Content
[0004] The technical problem this invention aims to solve is that when clamping power fittings, the spring-assisted fixing method results in poor clamping performance, and the fittings are prone to falling off during rotation testing due to insufficient clamping force.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a power fitting wear testing device, including a base, a U-shaped fixing frame fixedly connected to the top of the base, and further including...
[0006] The product positioning component is located between the fixed frame and the base, including a U-shaped connecting frame. The connecting frame is located at the bottom of the fixed frame. A guide rod is fixedly connected between the inner walls of the connecting frame. A symmetrically distributed slider is horizontally slidable on the guide rod. A clamping plate is fixedly connected to the bottom of the slider. A cylinder is fixedly connected to the inner top wall of the connecting frame. A symmetrically distributed connecting rod is hinged to the free end of the cylinder. The lower end of the connecting rod is hinged to the top of the slider.
[0007] The test assembly, mounted on a fixed frame, includes a rotating shaft located at the bottom of the fixed frame. The lower end of the rotating shaft is fixedly connected to the top of a connecting frame. The fixed frame is equipped with a drive mechanism for adjusting the lateral position and direction of the rotating shaft.
[0008] Furthermore, the driving mechanism includes a linear guide rail, which is fixedly installed at the bottom of the fixed frame. An adjusting block is slidably provided on the linear guide rail. A connecting plate is fixedly connected to the bottom of the adjusting block. The upper end of the rotating shaft is rotatably connected to the bottom wall of the connecting plate. A servo motor is fixedly installed on the bottom wall of the connecting plate. A worm gear is fixedly connected to the output end of the servo motor, and one end of the servo motor is rotatably connected to the connecting plate. A worm wheel that meshes with the worm gear is fixedly connected to the rotating shaft.
[0009] Furthermore, it also includes a positioning mechanism, which is mounted on a fixed frame and is symmetrically distributed. It includes a fixing block and a clamping block. The fixing block is fixedly connected to the inner wall of the fixed frame. An electric push rod is fixedly installed on the top of the base, and the clamping block is fixedly connected to the free end of the electric push rod.
[0010] Furthermore, a limiting rod is fixedly connected between the inner walls of the connecting frame, and the slider horizontally passes through the limiting rod and is slidably connected to it.
[0011] Furthermore, the fixing frame has through holes on both sides, which are located between the clamping block and the fixing block. Symmetrically distributed winding rods are fixedly connected to the outer wall of the fixing frame, which are located on the upper and lower sides of the through holes.
[0012] Furthermore, the clamping plate is L-shaped, and a rubber pad is provided on the outer wall of the clamping plate. Both the front and rear sides of the clamping block are provided with L-shaped anti-fall bars.
[0013] The beneficial effects of this utility model after adopting the above structure are as follows:
[0014] (1) By contracting the cylinder, the upper end of the connecting rod moves upward, causing the slider to slide on the guide rod and the limit rod, thereby causing the two clamping plates to move relative to each other, which can clamp and position the power fittings.
[0015] (2) The two ends of the cable on the power fitting can be positioned by winding it around the winding coil and moving the clamp upward, so as to ensure the stability of the cable during the test;
[0016] (3) The connecting frame can be rotated by the meshing transmission of the worm and the worm wheel, or the adjusting block can be made to slide horizontally by controlling the linear guide rail. The lateral position of the connecting frame can be adjusted by sliding, so that the cable and the power fittings can be rubbed to conduct a wear test. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0018] Figure 1 This is a schematic diagram of the overall structure of a power fitting wear testing device proposed in this utility model;
[0019] Figure 2 This is a front view of a power fitting wear testing device proposed in this utility model;
[0020] Figure 3 A three-dimensional structural diagram of a power fitting wear testing device proposed in this utility model. Figure 1 ;
[0021] Figure 4 A three-dimensional structural diagram of a power fitting wear testing device proposed in this utility model. Figure 2 .
[0022] In the attached diagram: 1. Base, 2. Fixing frame, 3. Connecting frame, 4. Guide rod, 5. Slider, 6. Clamping plate, 7. Cylinder, 8. Connecting rod, 9. Rotating shaft, 10. Linear guide rail, 11. Adjusting block, 12. Connecting plate, 13. Servo motor, 14. Worm gear, 15. Worm wheel, 16. Fixing block, 17. Clamping block, 18. Electric push rod, 19. Limiting rod, 20. Through hole, 21. Winding rod, 22. Rubber pad, 23. Anti-fall rod. Detailed Implementation
[0023] like Figure 1-2 As shown, an electrical fitting wear testing device includes a base 1, a U-shaped fixing frame 2 fixedly connected to the top of the base 1, a product positioning component and a testing component, the product positioning component being located between the fixing frame 2 and the base 1, and the testing component being located on the fixing frame 2.
[0024] like Figure 1-4 As shown, in order to facilitate the positioning of power fittings and ensure stability during wear tests, the product positioning assembly includes a U-shaped connecting frame 3, which is located at the bottom of the fixed frame 2. A guide rod 4 is fixedly connected between the inner walls of the connecting frame 3. A symmetrically distributed slider 5 is horizontally slidable on the guide rod 4. A limit rod 19 is fixedly connected between the inner walls of the connecting frame 3. The slider 5 horizontally passes through the limit rod 19 and is slidably connected to it. The combination of the limit rod 19 and the guide rod 4 can limit the slider 5, so that it can only slide laterally. A clamping plate 6 is fixedly connected to the bottom of the slider 5. The clamping plate 6 is L-shaped. A rubber pad 22 is provided on the outer wall of the clamping plate 6 for protection when clamping the power fittings. L-shaped anti-fall bars 23 are provided on both the front and rear sides of the clamping block 17 to prevent the power fittings from falling off the front and rear sides of the clamping plate 6. A cylinder 7 is fixedly connected to the inner top wall of the connecting frame 3. A symmetrically distributed connecting rod 8 is hinged to the free end of the cylinder 7. The lower end of the connecting rod 8 is hinged to the top of the slider 5.
[0025] To position the cable on the power fitting, a positioning mechanism is also included, which is mounted on the fixed frame 2 and is symmetrically distributed. It includes a fixed block 16 and a clamping block 17. The fixed block 16 is fixedly connected to the inner wall of the fixed frame 2. An electric push rod 18 is fixedly installed on the top of the base 1. The clamping block 17 is fixedly connected to the free end of the electric push rod 18. Both sides of the fixed frame 2 are provided with through holes 20, which are located between the clamping block 17 and the fixed block 16. Symmetrically distributed winding rods 21 are fixedly connected to the outer wall of the fixed frame 2, which are located on the upper and lower sides of the through holes 20.
[0026] like Figure 1-4As shown, in order to perform efficient testing on electrical fittings, the test assembly includes a rotating shaft 9, which is located at the bottom of the fixed frame 2. The lower end of the rotating shaft 9 is fixedly connected to the top of the connecting frame 3. The fixed frame 2 is equipped with a drive mechanism, which is used to adjust the lateral position and direction of the rotating shaft 9. The drive mechanism includes a linear guide rail 10, which is fixedly installed at the bottom of the fixed frame 2. An adjusting block 11 is slidably provided on the linear guide rail 10. A connecting plate 12 is fixedly connected to the bottom of the adjusting block 11. The upper end of the rotating shaft 9 is rotatably connected to the bottom wall of the connecting plate 12. A servo motor 13 is fixedly installed on the bottom wall of the connecting plate 12. A worm gear 14 is fixedly connected to the output end of the servo motor 13, and one end of the servo motor 13 is rotatably connected to the connecting plate 12. A worm wheel 15 that meshes with the worm gear 14 is fixedly connected to the rotating shaft 9.
[0027] In practical use, the electrical fitting to be tested is placed between the two clamping plates 6. Then, the cylinder 7 is controlled to retract, and the upward movement of the upper end of the connecting rod 8 causes the slider 5 to slide on the guide rod 4 and the limiting rod 19, thereby causing the two clamping plates 6 to move relative to each other until the electrical fitting is clamped and positioned. The rubber pad 22 can prevent damage to the outer wall of the electrical fitting, while the anti-fall rod 23 can prevent the electrical fitting from falling off the clamping plates 6. After inserting both ends of the cable on the electrical fitting into the two through holes 20, the cable is wound around the coil. The electric push rod 18 is extended to move the clamping block 17 upward, clamping the cable between the clamping block 17 and the fixing block 16 for positioning. During the wear test, the servo motor 13 can be turned on to make the worm gear 14 mesh with the worm wheel 15 to rotate the connecting frame 3, causing friction between the cable and the power fittings to conduct the wear test. Alternatively, the linear guide rail 10 can be controlled to make the adjusting block 11 slide horizontally, adjusting the lateral position of the connecting frame 3 to cause friction between the cable and the power fittings to conduct the wear test.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A power fitting abrasion test device, comprising a base (1), the top of the base (1) is fixedly connected with a fixed frame (2) arranged in a ∩ shape, characterized in that: Also includes The product positioning component is located between the fixed frame (2) and the base (1), including a connecting frame (3) arranged in a ∩ shape. The connecting frame (3) is located at the bottom of the fixed frame (2). A guide rod (4) is fixedly connected between the inner walls of the connecting frame (3). A symmetrically distributed slider (5) is horizontally slidable on the guide rod (4). A clamping plate (6) is fixedly connected to the bottom of the slider (5). A cylinder (7) is fixedly connected to the inner top wall of the connecting frame (3). A symmetrically distributed connecting rod (8) is hinged to the free end of the cylinder (7). The lower end of the connecting rod (8) is hinged to the top of the slider (5). The test assembly is mounted on a fixed frame (2) and includes a rotating shaft (9). The rotating shaft (9) is located at the bottom of the fixed frame (2). The lower end of the rotating shaft (9) is fixedly connected to the top of the connecting frame (3). The fixed frame (2) is provided with a driving mechanism, which is used to adjust the lateral position and direction of the rotating shaft (9).
2. The electric power fitting abrasion test device according to claim 1, characterized by: The driving mechanism includes a linear guide rail (10), which is fixedly installed at the bottom of the fixed frame (2). An adjusting block (11) is slidably provided on the linear guide rail (10). A connecting plate (12) is fixedly connected to the bottom of the adjusting block (11). The upper end of the rotating shaft (9) is rotatably connected to the bottom wall of the connecting plate (12). A servo motor (13) is fixedly installed on the bottom wall of the connecting plate (12). A worm gear (14) is fixedly connected to the output end of the servo motor (13), and one end of the worm gear (14) is rotatably connected to the connecting plate (12). A worm wheel (15) that meshes with the worm gear (14) is fixedly connected to the rotating shaft (9).
3. The electric power fitting abrasion test device according to claim 1 or 2, characterized by: It also includes a positioning mechanism, which is located on the fixed frame (2) and is symmetrically distributed. It includes a fixed block (16) and a clamping block (17). The fixed block (16) is fixedly connected to the inner wall of the fixed frame (2). An electric push rod (18) is fixedly installed on the top of the base (1). The clamping block (17) is fixedly connected to the free end of the electric push rod (18).
4. The electric power fitting abrasion test device according to claim 1, characterized by: The connecting frame (3) is fixedly connected to the inner wall of the limiting rod (19), and the slider (5) passes horizontally through the limiting rod (19) and is slidably connected to it.
5. The electric power fitting abrasion test device according to claim 3, characterized by: Both sides of the fixing frame (2) are provided with through holes (20), which are located between the clamping block (17) and the fixing block (16). Symmetrically distributed winding rods (21) are fixedly connected to the outer wall of the fixing frame (2), which are located on the upper and lower sides of the through holes (20).
6. The electric power fitting abrasion test device according to claim 5, wherein: The clamping plate (6) is L-shaped, and a rubber pad (22) is provided on the outer wall of the clamping plate (6). The front and rear sides of the clamping block (17) are provided with anti-fall bars (23) in an L-shape.