A contact performance testing device

Abstract

This utility model discloses a contact performance testing device, including a workbench, a placement seat, a mounting frame, a lifting mechanism, and an automatic opening and closing mechanism. The placement seat is used to mount a switch characteristic tester. The lifting mechanism on the mounting frame can drive the automatic opening and closing mechanism to move vertically. The bottom end of the automatic opening and closing mechanism can clamp the control rod of the switch contact and achieve vertical rotation, thereby automatically completing the opening and closing operation of the switch. The automatic opening and closing mechanism includes a rotating motor, an L-shaped rotating rod, and a clamping structure with a bidirectional screw and a clamping ring. The lifting mechanism is driven by a lifting motor and a lifting screw. The device also includes a placement seat with a protective cover, a storage bag for storing test leads, and support legs with hydraulic rods and casters. This device achieves automated testing of contact performance, improves efficiency and accuracy of test results, reduces human error, and is suitable for contact performance testing scenarios in electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of contact testing equipment technology, and in particular to a contact performance testing device. Background Technology

[0002] As a key component in electrical equipment, the performance of contacts directly affects the operational stability and safety of the equipment. Therefore, it is particularly important to test the performance of contacts. In the traditional contact performance testing process, the tester needs to manually open and close the switch multiple times to simulate the working state in actual use. This operation method is cumbersome and time-consuming, reducing the testing efficiency. Summary of the Invention

[0003] The technical problem to be solved by this invention is the low efficiency of manually opening and closing the switch by testing personnel.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a contact performance testing device, including a workbench, a placement seat fixed on the workbench for mounting a switch characteristic tester, and a mounting frame fixed on one side of the top of the workbench. A lifting mechanism is vertically slidably mounted on the mounting frame, and an automatic opening and closing mechanism is mounted on the lifting mechanism. The bottom end of the automatic opening and closing mechanism is vertically rotatably arranged, and a control rod for clamping and controlling the opening and closing of the switch contact is provided at the bottom end of the automatic opening and closing mechanism.

[0005] Preferably, the automatic opening and closing mechanism includes a mounting box, a rotary motor fixed inside the mounting box, and a rotating rod driven vertically by the rotary motor. The rotating rod is L-shaped, and a fixed frame is fixedly connected to the bottom end of the rotating rod. The fixed frame is provided with a clamping structure for clamping the control rod.

[0006] Preferably, the clamping structure includes a bidirectional screw arranged horizontally on the fixed frame, with opposite helical directions at both ends of the bidirectional screw, and a slide connected to both ends of the bidirectional screw. The sidewall of the slide is in contact with the inner sidewall of the fixed frame, and an arc-shaped clamping ring for clamping the control rod is fixedly connected to the slide.

[0007] Preferably, the side wall of the fixing frame is provided with a groove, one end of the bidirectional screw is located outside the fixing frame, and a rotating block is fixedly connected to the end of the bidirectional screw located outside the fixing frame. The slide is located in the groove, and the side wall of the slide fits against the inner wall of the groove.

[0008] Preferably, the inner wall of the clamping ring is provided with an anti-slip rubber pad.

[0009] Preferably, the lifting mechanism includes a lifting screw arranged vertically and rotatably on the mounting frame, a lifting motor for driving the lifting screw to rotate is fixedly connected to the mounting frame, a slider is threadedly connected to the lifting screw, the automatic opening and closing mechanism is fixedly connected to the slider, and one end of the slider is in contact with the side wall of the mounting frame.

[0010] Preferably, a slot is provided at the top edge of the placement seat, and a protective cover is provided on the switch characteristic detector, with a card block for embedding into the slot at the bottom of the protective cover.

[0011] Preferably, the inner wall of the protective cover is equipped with a storage bag for storing test leads, and the storage bag is provided with an elastic fixing strap.

[0012] Preferably, the bottom of the workbench is fixedly provided with several legs, and the bottom end of the legs is connected to a caster wheel.

[0013] Preferably, the support leg is provided with a vertical groove, in which a hydraulic rod is vertically fixedly installed. The movable wheel is fixedly connected to the bottom end of the hydraulic rod, and the movable wheel is located directly below the vertical groove, with the vertical groove covering the movable wheel.

[0014] This utility model provides a contact performance testing device, which has the following beneficial effects.

[0015] Compared with existing technologies, the contact performance testing device provided in this solution achieves efficient, accurate and automated performance testing of switch contacts. It can automatically open and close switch contacts during the testing process, which not only improves testing efficiency but also ensures the accuracy and consistency of test results. At the same time, it optimizes the operation process and reduces human error, providing users with a more convenient, safe and reliable testing solution. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front view structural diagram of a contact performance testing device provided by this utility model.

[0018] Figure 2 This is a front sectional view of a contact performance testing device provided by this utility model.

[0019] Figure 3 This is a top view of the mounting bracket and clamping ring in this utility model.

[0020] Figure 4 for Figure 2 The diagram shows an enlarged view of part A.

[0021] Reference numerals: 1. Workbench; 2. Placement seat; 3. Placement slot; 4. Switch characteristic tester; 5. Mounting bracket; 6. Mounting box; 7. Rotary motor; 8. Rotating rod; 9. Fixing bracket; 10. Bidirectional screw; 11. Slide block; 12. Clamping ring; 13. Lifting motor; 14. Lifting screw; 15. Slider; 16. Protective cover; 17. Locking block; 18. Locking slot; 19. Support leg; 20. Hydraulic rod; 21. Moving wheel; 22. Storage bag; 23. Elastic fixing strap; 24. Anti-slip rubber pad. Detailed Implementation

[0022] This utility model embodiment provides a contact performance testing device, such as... Figure 1-4 As shown, a multifunctional contact performance testing device includes: a workbench 1; a placement seat 2, which is fixedly installed on the workbench 1 and has a placement slot 3 for placing a switch characteristic tester 4, which is used to test the contact bounce performance and resistance; a mounting frame 5, which is fixedly installed on the workbench 1; an automatic opening and closing mechanism, which is provided on the mounting frame 5 and is used to automatically open and close the switch contacts during testing; and a lifting mechanism, which is provided on the mounting frame 5 and is used to adjust the height of the automatic opening and closing mechanism.

[0023] In this embodiment, the workbench 1 serves as a basic platform, providing a stable operating environment for supporting and fixing other components. The placement seat 2 is fixedly mounted on the workbench 1 and has a placement slot 3 for placing the switch characteristic tester 4, facilitating quick and accurate positioning and fixing of the tester by testing personnel. The switch characteristic tester 4, located on the workbench 1, is used to test key performance indicators such as contact bounce performance and resistance. 72.5kV is a medium-high voltage level; in 72.5kV switchgear, contact performance is crucial. The switch characteristic tester 4 provides a testing environment close to or equal to this voltage level to evaluate the electrical and mechanical performance of the contacts under high voltage. Through this high-precision testing instrument, accurate measurements can be obtained. The performance parameters of the contacts provide reliable data support for product quality control and improvement. The mounting bracket 5 is fixedly installed on the workbench 1 as a support structure for installing the automatic opening and closing mechanism and the lifting mechanism. The automatic opening and closing mechanism is located on the mounting bracket 5 and automatically opens and closes the switch contacts during the testing process, avoiding the tedious process of manual opening and closing multiple times by the testing personnel, and significantly improving the testing efficiency. The lifting mechanism is also located on the mounting bracket 5 and is used to adjust the height of the automatic opening and closing mechanism, so that the automatic opening and closing mechanism can better contact the switch contacts, enhancing the versatility and flexibility of the equipment. The entire testing process is more automated and intelligent, reducing the labor intensity of the testing personnel and improving work efficiency.

[0024] In a further preferred embodiment of this utility model, the automatic opening and closing mechanism includes a mounting box 6, a rotating motor 7, a rotating rod 8, a fixing frame 9, a bidirectional screw 10, two slide blocks 11, and two clamping rings 12. The mounting box 6 is slidably mounted on the mounting frame 5. The rotating motor 7 is fixedly mounted inside the mounting box 6. The rotating rod 8 is rotatably mounted on the mounting box 6, and the top end of the rotating rod 8 is fixed to the output shaft of the rotating motor 7. The fixing frame 9 is fixedly mounted on the rotating rod 8. The bidirectional screw 10 is rotatably mounted on the fixing frame 9. One end of the bidirectional screw 10 extends outside the fixing frame 9 and is fixedly mounted with a rotating block. Both slide blocks 11 are threaded onto the bidirectional screw 10 and slide against the inner wall of the fixing frame 9. The two clamping rings 12 are respectively fixedly mounted on the two slide blocks 11. The clamping rings 12 are used to clamp and fix the control rod for opening and closing the switch contacts.

[0025] In this embodiment, the mounting box 6 is slidably mounted on the mounting frame 5, and the rotating motor 7 is fixedly mounted inside the mounting box 6 as a power source to drive the rotating rod 8 to rotate. By precisely controlling the rotation speed and direction of the rotating motor 7, precise control of the opening and closing action of the switch contacts can be achieved. When the rotating motor 7 starts, the rotating rod 8 rotates accordingly, thereby driving the fixed frame 9 and its components to move. The fixed frame 9 is fixedly mounted on the rotating rod 8 to support the bidirectional screw 10 and two slide blocks 11. The bidirectional screw 10 is rotatably mounted on the fixed frame 9, with one end extending outside the fixed frame 9 and fixedly mounted with a rotating block. By rotating the rotating block, the bidirectional screw 10 can be driven to rotate, thereby driving the two slide blocks 11 to move relative to or towards each other within the fixed frame 9. The clamping ring 12 is fixedly mounted on the two slide blocks 11 respectively to clamp and fix the control rod for opening and closing the switch contacts, replacing the manual gripping and rotation by the operator, realizing automated control of the opening and closing action of the switch contacts, and improving detection efficiency and accuracy.

[0026] In a further preferred embodiment of this utility model, the lifting mechanism includes a lifting motor 13, a lifting screw 14, and a slider 15. The lifting motor 13 is fixedly mounted on the mounting frame 5, the lifting screw 14 is rotatably mounted on the mounting frame 5, one end of the lifting screw 14 is fixed to the output shaft of the lifting motor 13, and the slider 15 is threadedly mounted on the lifting screw 14 and fixed to the mounting box 6. The slider 15 is slidably attached to the mounting frame 5.

[0027] In this embodiment, the lifting motor 13 is fixedly mounted on the mounting frame 5 as a power source, driving the lifting screw 14 to rotate. By precisely controlling the rotation direction and speed of the lifting motor 13, precise lifting control of the slider 15 and the mounting box 6 can be achieved. The lifting screw 14 is rotatably mounted on the mounting frame 5, with one end fixed to the output shaft of the lifting motor 13. When the lifting motor 13 starts, the lifting screw 14 rotates accordingly, thereby driving the slider 15 to move up and down within the mounting frame 5. The slider 15 is threaded onto the lifting screw 14 and fixed to the mounting box 6. The threaded engagement between the slider 15 and the lifting screw 14 allows the slider 15 to move up and down along the axis of the screw when the lifting screw 14 rotates, so that the clamping ring 12 can correspond to the position of the control rod of the switch contact, fixing the control rod and then rotating it.

[0028] In a further preferred embodiment of the present invention, the placement base 2 is covered with a protective cover 16 for protecting the switch characteristic tester 4. A locking block 17 is fixedly installed at the bottom of the protective cover 16. A locking groove 18 is provided on the placement base 2, and the locking block 17 is fitted into the locking groove 18.

[0029] In this embodiment, the protective cover 16 is mounted on the placement base 2 and is mainly used to protect the switch characteristic tester 4 placed in the placement slot 3. The protective cover 16 can prevent external factors such as dust and debris from damaging the switch characteristic tester 4 when it is not in use. At the same time, it can also reduce the impact of misoperation or accidental collision on the tester to a certain extent. The locking block 17 is fixedly installed on the bottom of the protective cover 16 as a component for connecting and fixing the protective cover 16 and the placement base 2. The locking slot 18 is opened on the placement base 2 and fits into the locking block 17, so that the locking block 17 can be accurately inserted and fixed on the placement base 2, thereby ensuring the stability and firmness of the protective cover 16.

[0030] In a further preferred embodiment of the present invention, a plurality of support legs 19 are fixedly installed at the bottom of the workbench 1, a hydraulic rod 20 is fixedly installed inside the support leg 19, and a moving wheel 21 is fixedly installed on the output rod of the hydraulic rod 20.

[0031] In this embodiment, the support leg 19 is fixedly installed at the bottom of the workbench 1 as a support structure to ensure the stability and load-bearing capacity of the workbench 1. The hydraulic rod 20 is fixedly installed inside the support leg 19 as a drive component to control the lifting and lowering of the moving wheel 21. The hydraulic rod 20 has strong thrust and stable control performance, and can accurately control the moving wheel 21. The moving wheel 21 is fixedly installed on the output rod of the hydraulic rod 20 to realize the movement of the workbench 1, move the device to the side of the switch contact, and detect the switch contact. During the detection, the output rod of the hydraulic rod 20 can be controlled to retract, and the moving wheel 21 can be retracted into the support leg 19 to ensure the stability of the device.

[0032] In a further preferred embodiment of the present invention, the inner wall of the protective cover 16 is provided with a plurality of storage bags 22 for storing test lines, and the storage bags 22 are provided with elastic fixing straps 23.

[0033] In this embodiment, the storage bag 22 is located on the inner wall of the protective cover 16 as a storage space for the test lines, so that the test lines can be stored in an orderly manner inside the protective cover 16, avoiding the mess and tangling of the test lines, improving the cleanliness of the testing site and work efficiency. The elastic fixing strap 23 is located inside the storage bag 22 to fix the stored test lines. The elastic fixing strap 23 has a certain elasticity and fastening force, which can firmly fix the test lines inside the storage bag 22.

[0034] In a further preferred embodiment of the present invention, an anti-slip rubber pad 24 for increasing friction is fixedly installed on the inner wall of the clamping ring 12.

[0035] In this embodiment, the anti-slip rubber pad 24 is fixedly installed on the inner wall of the clamping ring 12. As a component to increase friction, the anti-slip rubber pad 24 is made of rubber material with a high coefficient of friction. Its surface has a certain roughness, which can fit tightly with the object being clamped (such as the control rod of the switch contact), thereby providing greater friction and making the clamping ring 12 more stable during clamping and less likely to slip or loosen.

Claims

1. A contact performance detection apparatus, characterized by: It includes a workbench (1), a mounting base (2) fixed on the workbench (1) for mounting a switch characteristic tester (4), and a mounting bracket (5) fixed on one side of the top of the workbench (1). A lifting mechanism is vertically slidably mounted on the mounting bracket (5). An automatic opening and closing mechanism is mounted on the lifting mechanism. The bottom end of the automatic opening and closing mechanism is vertically rotatably arranged, and a control rod for clamping and controlling the opening and closing of the switch contacts is provided at the bottom end of the automatic opening and closing mechanism.

2. The contact performance detection apparatus of claim 1, wherein: The automatic opening and closing mechanism includes a mounting box (6), a rotating motor (7) fixed inside the mounting box (6), and a rotating rod (8) driven to rotate vertically by the rotating motor (7). The rotating rod (8) is L-shaped, and a fixing frame (9) is fixedly connected to the bottom end of the rotating rod (8). The fixing frame (9) is provided with a clamping structure for clamping the control rod.

3. The contact performance testing device of claim 2, wherein: The clamping structure includes a bidirectional screw (10) arranged horizontally on the fixed frame (9). The two ends of the bidirectional screw (10) have opposite spiral directions. Both ends of the bidirectional screw (10) are threadedly connected to a slide (11). The side wall of the slide (11) fits against the inner side wall of the fixed frame (9). An arc-shaped clamping ring (12) for clamping the control rod is fixedly connected to the slide (11).

4. The contact performance testing device of claim 3, wherein: The side wall of the fixing frame (9) is provided with a groove, one end of the bidirectional screw (10) is located outside the fixing frame (9), and a rotating block is fixedly connected to the end of the bidirectional screw (10) located outside the fixing frame (9). The slide (11) is located in the groove, and the side wall of the slide (11) is in contact with the inner wall of the groove.

5. The contact performance testing device of claim 3, wherein: The inner wall of the clamp (12) is provided with an anti-slip rubber pad (24).

6. The contact performance testing device of claim 1, wherein: The lifting mechanism includes a lifting screw (14) arranged vertically and rotatably on the mounting frame (5). A lifting motor (13) for driving the lifting screw (14) to rotate is fixedly connected to the mounting frame (5). A slider (15) is threadedly connected to the lifting screw (14). The automatic opening and closing mechanism is fixedly connected to the slider (15). One end of the slider (15) is in contact with the side wall of the mounting frame (5).

7. The contact performance testing device of claim 1, wherein: The placement seat (2) has a slot (18) at the top edge, and the switch characteristic detector (4) is covered with a protective cover (16). The bottom of the protective cover (16) is provided with a card block (17) for embedding into the slot (18).

8. The contact performance testing device of claim 7, wherein: The inner wall of the protective cover (16) is equipped with a storage bag (22) for storing test lines, and an elastic fixing strap (23) is provided inside the storage bag (22).

9. The contact performance testing device of claim 1, wherein: The bottom of the workbench (1) is fixedly provided with several legs (19), and the bottom end of the legs (19) is connected to a moving wheel (21).

10. The contact performance testing apparatus of claim 9, wherein: The leg (19) has a vertical groove, and a hydraulic rod (20) is vertically fixed in the vertical groove. The movable wheel (21) is fixedly connected to the bottom end of the hydraulic rod (20). The movable wheel (21) is located directly below the vertical groove, and the vertical groove covers the movable wheel (21).

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