Circuit breaker test equipment

Abstract

The utility model discloses a breaker test device, comprising a workbench, the middle part of the top of the workbench is provided with a test bench, the top of the workbench is provided with first fixing devices at two sides of the test bench, the top of the workbench is provided with a pushing device at the rear end of the test bench, and the pushing device is connected with the test bench. A supporting frame is arranged at the top of the workbench and located over the testing table, a testing device is arranged on the supporting frame, a second fixing device is arranged at the bottom of the workbench, and the second fixing device penetrates through the workbench and moves under the testing table. Because the circuit breaker test equipment adopts an automatic assembly line, whether the mechanical life of the circuit breaker reaches the standard can be tested in an omnibearing manner, the performance of the circuit breaker can be conveniently and accurately tested, the product quality is effectively ensured, the test efficiency is high, and the automation performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker testing, in particular to a circuit breaker testing device. Background Art

[0002] A circuit breaker is a switching device that can close, carry, and interrupt the current under normal circuit conditions, and can also close, carry, and interrupt the current under abnormal circuit conditions within a specified time. Circuit breakers can be classified into high-voltage circuit breakers and low-voltage circuit breakers according to their functions. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power supply lines and motors, etc. When they have serious overload, short circuit, undervoltage and other faults, they can automatically cut off the circuit. Its function is equivalent to the combination of a fuse switch and an overheat relay, etc., and generally no parts need to be changed after breaking the fault current.

[0003] Existing circuit breaker testing devices have problems such as poor testing effect and low accuracy during the circuit breaker testing process due to relatively simple designs. Their automation effect is poor, they cannot achieve fully automatic testing work, their work efficiency is low, and they cannot accurately and quickly test the performance of circuit breakers. Summary of the Invention

[0004] The purpose of the utility model is to provide a circuit breaker testing device to solve the problems in the above-mentioned background art that existing circuit breaker testing devices have poor testing effect and low accuracy during the circuit breaker testing process due to relatively simple designs, poor automation effect, inability to achieve fully automatic testing work, low work efficiency, and inability to accurately and quickly test the performance of circuit breakers.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A circuit breaker testing device includes a workbench. In the middle of the top of the workbench, there is a testing table. On both sides of the testing table at the top of the workbench, there are first fixing devices. At the rear end of the testing table at the top of the workbench, there is a pushing device, and the pushing device is connected to the testing table. Above the testing table at the top of the workbench, there is a support frame, and a testing device is arranged on the support frame. At the bottom of the workbench, there is a second fixing device, and the second fixing device passes through the workbench and moves under the testing table.

[0006] Preferably, the testing table includes a slide rail, a slider, a limit block, and a placement table. The slide rails are symmetrically and fixedly installed on the surface of the top of the workbench. The slider is slidably connected to the surface of the slide rail. The placement table is fixedly connected to the top of the slider. The limit block is fixedly connected to the side of the slide rail away from the pushing device.

[0007] Preferably, the first fixing device includes a first support base, a first fixed telescopic cylinder, and a fixed contact plate. The first support base is fixedly installed on the top surface of the workbench. A first fixed telescopic cylinder is fixedly installed on one side of the first support base away from the test bench. The output end of the first fixed telescopic cylinder passes through the first support base and is fixedly connected to the fixed contact plate, and the fixed contact plate is in contact with both sides of the surface of the placement table.

[0008] Preferably, the pushing device includes a second support base, a pushing telescopic cylinder, and a pushing contact plate. The second support base is fixedly installed on the top surface of the workbench. A pushing telescopic cylinder is fixedly installed on one side of the second support base away from the test bench. The output end of the pushing telescopic cylinder passes through the second support base and is fixedly connected to the pushing contact plate, and the pushing contact plate is in contact with the rear end of the surface of the placement table.

[0009] Preferably, a threaded hole is provided on the surface of the second support base directly above the pushing telescopic cylinder. A threaded rod is threadedly connected to the internal thread of the threaded hole, and one end of the threaded rod is rotatably connected to the pushing contact plate.

[0010] Preferably, the testing device includes a lifting telescopic cylinder, a connecting plate, a guiding rod, and a testing mechanism. The lifting telescopic cylinder is fixedly installed on the top surface of the support frame. The connecting plate is disposed on the bottom surface of the support frame. Both sides of the top of the connecting plate are fixedly connected to the output ends of the lifting telescopic cylinder. Activity holes are provided on both sides of the lifting telescopic cylinder on the surface of the support frame. Guide rods are fixedly connected to the top surface of the connecting plate at positions corresponding to the activity holes, and the guide rods are movably connected within the activity holes. The testing mechanism is fixedly installed in the middle of the bottom surface of the connecting plate.

[0011] Preferably, the testing mechanism includes a testing cylinder, a testing cover, and a pushing rod. The testing cover is fixedly installed on the bottom surface of the connecting plate. A plurality of testing cylinders are evenly distributed and installed on the top of the testing cover. A testing cavity is provided at the bottom of the testing cover. A pushing rod is disposed at a position corresponding to the testing cylinder within the testing cavity, and the pushing rod is connected to the output end of the testing cylinder.

[0012] Preferably, the second fixing device includes a second fixed telescopic cylinder and a fixed rod. The second fixed telescopic cylinder is fixedly installed at the bottom of the workbench. The output end of the second fixed telescopic cylinder passes through the workbench and is connected to one end of the fixed rod, and the other end of the fixed rod is in contact with the bottom surface of the placement table.

[0013] Beneficial effects

[0014] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0015] Since the circuit breaker testing equipment adopts an automated production line, it can comprehensively test whether the mechanical life of the circuit breaker meets the standards, conveniently and accurately test the performance of the circuit breaker, effectively guarantee the product quality, and has high testing efficiency and good automation performance. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the test bench of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the first fixing device of the present utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the pushing device of the present utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the testing device of the present utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the testing mechanism of the present utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the second fixing device of the present utility model.

[0023] 1. Workbench; 2. Test bench; 3. First fixing device; 4. Pushing device; 5. Support frame; 6. Testing device; 7. Second fixing device; 21. Slide rail; 22. Slide block; 23. Placement table; 24. Limiting block; 31. First support seat;

[0024] 32. First fixed telescopic cylinder; 33. Fixed contact plate; 41. Second support seat; 42. Pushing telescopic cylinder;

[0025] 43. Pushing contact plate; 44. Threaded hole; 45. Threaded rod; 61. Lifting telescopic cylinder; 62. Connecting plate;

[0026] 63. Moving hole; 64. Guide rod; 65. Testing mechanism; 71. Second fixed telescopic cylinder; 72. Fixed rod;

[0027] 651. Testing cover; 652. Testing cylinder; 653. Testing cavity; 654. Pushing rod; Detailed Implementation Manner

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] As Figure 1-7 It is a schematic structural diagram of a circuit breaker testing device according to a preferred embodiment of the present utility model. In this embodiment, a circuit breaker testing device includes a workbench 1. A test bench 2 is provided in the middle of the top of the workbench 1. First fixing devices 3 are provided on both sides of the test bench 2 at the top of the workbench 1. The first fixing devices 3 on both sides push towards the test bench direction and are in contact with both side surfaces of the placement table 23 to prevent the placement table 23 from shaking horizontally during the test. At the same time, a pushing device 4 is provided at the rear end of the test bench 2 at the top of the workbench 1, and the pushing device 4 is connected to the test bench 2 to control the moving function of the test bench 2. A support frame 5 is provided directly above the test bench 2 at the top of the workbench 1. The support frame 5 is fixedly installed on the peripheral surfaces of the top of the workbench 1 through support columns. A testing device 6 is provided on the support frame 5 to realize the testing function of the circuit breaker on the test bench 2. A second fixing device 7 is provided at the bottom of the workbench 1. The second fixing device 7 passes through the workbench 1 and moves directly below the test bench 2 to fix the movement of the placement table 23, effectively preventing the placement table 23 from sliding outwards during the test. Combining the above structural design, the circuit breaker testing device adopts an automated production line, which can comprehensively test whether the mechanical life of the circuit breaker meets the standard, can conveniently and accurately test the performance of the circuit breaker, effectively ensure the product quality, has high testing efficiency and good automation performance.

[0031] In this embodiment, the test bench 2 includes a slide rail 21, a slider 22, a limit block 24, and a placement table 23. The slide rail 21 is symmetrically and fixedly installed on the top surface of the workbench 1. A slider 22 is slidably connected to the surface of the slide rail 21, and a placement table 23 is fixedly connected to the top of the slider 22, thereby realizing the sliding function of the placement table 23. At the same time, a limit block 24 is fixedly connected to the side of the slide rail 21 away from the pushing device 4, which plays a role in limiting the sliding of the placement table 23.

[0032] In this embodiment, the first fixing device 3 includes a first support base 31, a first fixed telescopic cylinder 32, and a fixed contact plate 33. The first support base 31 is fixedly installed on the top surface of the workbench 1. A first fixed telescopic cylinder 32 is fixedly installed on the side of the first support base 31 away from the test bench 2. The output end of the first fixed telescopic cylinder 32 passes through the first support base 31 and is fixedly connected to the fixed contact plate 33. The fixed telescopic cylinder 32 drives the lateral movement of the fixed contact plate 33, and the fixed contact plate 33 contacts both sides of the surface of the placement table 23, playing a role in laterally fixing the placement table 23.

[0033] In this embodiment, the pushing device 4 includes a second support base 41, a pushing telescopic cylinder 42, and a pushing contact plate 43. The second support base 41 is fixedly installed on the top surface of the workbench 1. A pushing telescopic cylinder 42 is fixedly installed on the side of the second support base 41 away from the test bench 2. The output end of the pushing telescopic cylinder 42 passes through the second support base 41 and is fixedly connected to the pushing contact plate 43. The pushing telescopic cylinder 42 drives the pushing contact plate 43 to realize the function of moving back and forth, and the pushing contact plate 43 contacts the rear end of the surface of the placement table 23, thereby realizing the function that the placement table 23 can automatically slide on the slide rail 21.

[0034] In this embodiment, at the same time, a threaded hole 44 is opened on the surface of the second support base 41 directly above the pushing telescopic cylinder 42. A threaded rod 45 is connected to the internal thread of the threaded hole 44. One end of the threaded rod 45 is rotatably connected to the pushing contact plate 43. By rotating the threaded rod 45, the contact angle between the pushing contact plate 43 and the placement table 23 is realized, further ensuring the connection between the pushing contact plate 43 and the placement contact table 23.

[0035] In this embodiment, the test device 6 includes a lifting and telescopic cylinder 61, a connecting plate 62, a guide rod 64, and a test mechanism 65. The lifting and telescopic cylinder 61 is fixedly installed on the top surface of the support frame 5. The connecting plate 62 is disposed on the bottom surface of the support frame 5. The two sides of the top of the connecting plate 62 are fixedly connected to the output end of the lifting and telescopic cylinder 61. Thus, by means of the function of the lifting and telescopic cylinder 61 to drive the up and down movement of the connecting plate 62, movable holes 63 are opened on the surface of the support frame 5 on both sides of the lifting and telescopic cylinder 61. And a guide rod 64 is fixedly connected to the top surface of the connecting plate 62 at a position opposite to the movable holes 63. The guide rod 64 is movably connected in the movable holes 63 to play a guiding role, effectively preventing the connecting plate 62 from shifting in position during the up and down movement. At the same time, the test mechanism 65 is fixedly installed in the middle of the bottom surface of the connecting plate 62.

[0036] In this embodiment, the test mechanism 65 includes a test cylinder 652, a test cover 651, and a push rod 654. The test cover 651 is fixedly installed on the bottom surface of the connecting plate 62. A plurality of test cylinders 652 are evenly distributed and installed on the top of the test cover 651. At the same time, a test cavity 653 is opened at the bottom of the test cover 651. During the test process, the circuit breaker can be covered by the cavity of the test cavity 653 to prevent the circuit breaker on the placement table 23 from shifting. A push rod 654 is arranged at a position opposite to the test cylinder 652 in the test cavity 653. And the push rod 654 is connected to the output end of the test cylinder 652. When the test cylinder 652 works, it drives the push rod 654. Since the test cylinders 652 are arranged oppositely, by driving the push rod 654 through the test cylinders 652, the switch of the circuit breaker can be pushed back and forth to test the mechanical life function of the circuit breaker.

[0037] In this embodiment, the second fixing device 7 includes a second fixed telescopic cylinder 71 and a fixing rod 72. The second fixed telescopic cylinder 71 is fixedly installed at the bottom of the workbench 1. The output end of the second fixed telescopic cylinder 71 passes through the workbench 1 and is connected to one end of the fixing rod 72. During the test, the other end of the fixing rod 72 contacts the bottom surface of the placement table 23, so as to realize the fixing function of the placement table 23. When the test is completed, the fixing rod 72 is separated from the bottom surface of the placement table 23.

[0038] The above content further elaborates on the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. A circuit breaker testing device, comprising a workbench (1), characterized in that: In the middle of the top of the workbench (1), a test bench (2) is provided. On both sides of the test bench (2) at the top of the workbench (1), a first fixing device (3) is provided. At the rear end of the test bench (2) at the top of the workbench (1), a pushing device (4) is provided, and the pushing device (4) is connected to the test bench (2). Above the test bench (2) at the top of the workbench (1), a support frame (5) is provided, and a test device (6) is arranged on the support frame (5). At the bottom of the workbench (1), a second fixing device (7) is provided, and the second fixing device (7) passes through the workbench (1) and moves under the test bench (2).

2. The circuit breaker testing device according to claim 1, wherein: The test bench (2) includes a slide rail (21), a slider (22), a limit block (24) and a placement table (23). The slide rails (21) are symmetrically and fixedly installed on the top surface of the workbench (1). The surface of the slide rail (21) is slidably connected with a slider (22). The top of the slider (22) is fixedly connected with a placement table (23). On the side of the slide rail (21) away from the pushing device (4), a limit block (24) is fixedly connected.

3. The circuit breaker testing device according to claim 1, characterized in that: The first fixing device (3) includes a first support seat (31), a first fixed telescopic cylinder (32) and a fixed contact plate (33). The first support seat (31) is fixedly installed on the top surface of the workbench (1). On the side of the first support seat (31) away from the test bench (2), a first fixed telescopic cylinder (32) is fixedly installed. The output end of the first fixed telescopic cylinder (32) passes through the first support seat (31) and is fixedly connected with a fixed contact plate (33), and the fixed contact plate (33) is in contact with both sides of the surface of the placement table (23).

4. The circuit breaker testing device according to claim 1, wherein: The pushing device (4) includes a second support seat (41), a pushing telescopic cylinder (42) and a pushing contact plate (43). The second support seat (41) is fixedly installed on the top surface of the workbench (1). On the side of the second support seat (41) away from the test bench (2), a pushing telescopic cylinder (42) is fixedly installed. The output end of the pushing telescopic cylinder (42) passes through the second support seat (41) and is fixedly connected with a pushing contact plate (43), and the pushing contact plate (43) is in contact with the rear end of the surface of the placement table (23).

5. The circuit breaker testing device according to claim 4, wherein: On the surface of the second support seat (41) directly above the pushing telescopic cylinder (42), a threaded hole (44) is provided. The internal thread of the threaded hole (44) is connected with a threaded rod (45), and one end of the threaded rod (45) is rotatably connected to the pushing contact plate (43).

6. The circuit breaker testing device according to claim 1, characterized in that: The test device (6) includes a lifting telescopic cylinder (61), a connecting plate (62), a guide rod (64), and a test mechanism (65). The lifting telescopic cylinder (61) is fixedly installed on the top surface of the support frame (5). The connecting plate (62) is disposed on the bottom surface of the support frame (5). Both sides of the top of the connecting plate (62) are fixedly connected to the output end of the lifting telescopic cylinder (61). Activity holes (63) are formed on the surface of the support frame (5) on both sides of the lifting telescopic cylinder (61). Guide rods (64) are fixedly connected to the top surface of the connecting plate (62) at positions opposite to the activity holes (63), and the guide rods (64) are movably connected in the activity holes (63). The test mechanism (65) is fixedly installed in the middle of the bottom surface of the connecting plate (62).

7. The circuit breaker testing device according to claim 6, characterized in that: The test mechanism (65) includes a test cylinder (652), a test cover (651), and a push rod (654). The test cover (651) is fixedly installed on the bottom surface of the connecting plate (62). A plurality of test cylinders (652) are evenly distributed and installed on the top of the test cover (651). A test cavity (653) is formed at the bottom of the test cover (651). A push rod (654) is arranged in the test cavity (653) at a position opposite to the test cylinder (652), and the push rod (654) is connected to the output end of the test cylinder (652).

8. The circuit breaker testing device according to claim 1, characterized in that: The second fixing device (7) includes a second fixing telescopic cylinder (71) and a fixing rod (72). The second fixing telescopic cylinder (71) is fixedly installed at the bottom of the workbench (1). The output end of the second fixing telescopic cylinder (71) passes through the workbench (1) and is connected to one end of the fixing rod (72). The other end of the fixing rod (72) is in contact with the bottom surface of the placement table (23).

Images