Circuit breaker test commutation tool

Abstract

The utility model discloses a breaker test commutation tool comprising a rack, the rack is fixedly connected with a first limiting block, the first limiting block is provided with a first worm rod in a penetrating manner, the first worm rod is rotatably connected with the first limiting block, one end of the first worm rod is fixedly connected with a first hand wheel, the first worm rod is engaged with a first worm gear, and the first worm gear is engaged with a second hand wheel. The first worm wheel is rotatably connected with the rack, a first threaded rod in threaded connection with the first worm wheel is arranged on the first worm wheel in a penetrating mode, a movable frame is fixedly connected to the front end of the first threaded rod, first sliding blocks are fixedly connected to the top and the bottom of the movable frame, and two first guide rails are fixedly connected to the rack. According to the utility model, the circuit breaker commutation member is adjusted in the X-axis, Y-axis and Z-axis directions, so that the circuit breaker commutation member is matched with different switch positions, the switch is turned on and off to realize commutation operation, the test efficiency is improved, manual commutation is replaced, and electric shock is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of phase-changing tooling, in particular to a phase-changing tooling for circuit breaker testing. Background Art

[0002] Circuit breaker synthesis testing is a common process for vacuum devices. After voltage is applied between the electrodes, flashover or even breakdown occurs between the electrodes and the surface of the insulating shell. If the voltage does not increase at this time, the flashover disappears. The above process is repeated every time the voltage is increased until it stabilizes. The purpose of high-voltage aging is to eliminate burrs, metal and non-metal particles and various impurities inside and outside the arc extinguishing chamber. The current aging process is specially designed for vacuum arc extinguishing chambers. Current aging uses a continuous diffusion arc that moves continuously on the electrode surface to remove burrs, metal oxides, metal and non-metal particles and other harmful substances on the electrode surface as thoroughly as possible. The air suction effect of the electrode material generated during arcing maintains a good vacuum inside the arc extinguishing chamber.

[0003] The most primitive circuit breaker test is to use manual phase change. After completing one phase, the other two phases are connected in turn. Due to the long test cycle and the risk of live phase, there is a problem that manual phase change results in low test efficiency and may cause electric shock to personnel if not handled with caution. To solve the above problems, this application proposes a circuit breaker test phase change tool. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings of the prior art and to propose a circuit breaker test phase-changing tool. By adjusting the circuit breaker phase-changing component in the X-axis, Y-axis and Z-axis directions, the circuit breaker phase-changing component is coordinated with different switch positions, so that the switch opening and closing realizes the phase-changing operation, thereby improving the efficiency of the test and replacing manual phase-changing to avoid electric shock.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A circuit breaker test commutation fixture includes a frame, a first limit block is fixedly connected to the frame, a first worm is provided through the first limit block and is rotatably connected to the first worm, one end of the first worm is fixedly connected to a first handwheel, the first worm is meshed with a first worm gear, the first worm gear is rotatably connected to the frame, a first threaded rod is provided through the first worm gear and is threadedly connected to the first worm gear, a front end of the first threaded rod is fixedly connected to a movable frame, the top and bottom of the movable frame are fixedly connected to a first slider, two first guide rails are fixedly connected to the frame, the two first sliders are respectively sleeved on the outer walls of the corresponding first guide rails and are slidably connected to them, and two adjustment mechanisms are provided on the movable frame.

[0007] Preferably, the adjusting mechanism includes a second limit block fixedly connected to the front end of the movable frame, the second limit block is provided with a second worm gear rotatably connected to it, one end of the second worm gear is fixedly connected to the second hand wheel, the second worm gear is meshed with a second worm gear, the second worm gear is provided with a second threaded rod threadedly connected to it, the bottom of the second threaded rod is fixedly connected to the lifting block, the side wall of the lifting block is fixedly connected to the second sliding block, the movable frame is fixedly connected to the second slide rail, the second sliding block is sleeved on the outer wall of the second slide rail and slidably connected to it, the front end of the lifting block is fixedly connected to the damping guide rail, the outer wall of the damping guide rail is sleeved with a damping guide block slidably connected to it, and the front end of the damping guide block is fixedly connected to the circuit breaker phase-changing component.

[0008] Preferably, outer walls of the first hand wheel and the second hand wheel are both covered with protective covers, and the material of the protective covers is rubber.

[0009] Preferably, a first opening is provided through the first worm gear, and the outer wall of the first threaded rod and the inner wall of the first opening are provided with matching external threads and internal threads respectively, and the first worm gear is coaxially arranged with the first threaded rod.

[0010] Preferably, a second opening is provided through the second worm gear, and the outer wall of the second threaded rod and the inner wall of the second opening are provided with matching external threads and internal threads respectively, and the second worm gear is coaxially arranged with the second threaded rod.

[0011] Preferably, four supporting legs are fixedly connected to the bottom of the frame, each of the supporting legs is installed and fixed by bolts, and a locking universal wheel is installed at the bottom of each supporting leg.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The staff holds the first hand wheel and rotates it to drive the first worm and the first limit block to rotate. The rotation of the first worm wheel drives the first threaded rod and the movable frame to move forward and backward. During this process, the first slider slides on the first guide rail to ensure the stability of the movable frame and realize the movement in the Y-axis direction.

[0014] 2. The staff holds the second hand wheel and rotates it to drive the second worm and the second worm wheel to rotate, so that the second threaded rod, the lifting block, the damping guide rail, the damping guide block and the circuit breaker phase-changing component are lifted and moved. During this process, the second slider slides on the second slide rail to ensure the stability of the lifting block, the damping guide rail, the damping guide block and the circuit breaker phase-changing component, and can realize movement in the Z-axis direction.

[0015] 3. By sliding the damping guide block on the damping guide rail, the circuit breaker phase-changing component can be adjusted left and right, and movement in the X-axis direction can be achieved.

[0016] 4. By adjusting the circuit breaker commutation component in the X, Y, and Z axis directions, the position of the circuit breaker commutation component can be adjusted to meet the requirements of the commutation operation when the circuit breaker commutation component is in coordination with different switches. This device improves the efficiency of the test and replaces manual commutation to avoid electric shock.

[0017] In summary, by adjusting the circuit breaker phase-changing component in the X-axis, Y-axis and Z-axis directions, the circuit breaker phase-changing component is coordinated with different switch positions, so that the switch opening and closing realizes the phase-changing operation, which improves the efficiency of the test and replaces manual phase-changing to avoid electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a circuit breaker test phase-changing tooling proposed by the utility model;

[0019] Figure 2 This is a left view of a circuit breaker test commutation tool proposed in the utility model;

[0020] Figure 3 This is a right side view of a circuit breaker test commutation tool proposed in the present utility model;

[0021] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0022] Figure 5 for Figure 3 A magnified view of the structure at point B in the middle;

[0023] Figure 6 The utility model provides a circuit diagram of a circuit breaker test in a circuit breaker test phase-changing tool.

[0024] In the figure: 1 frame, 2 first handwheel, 3 first worm, 4 first limit block, 5 first worm gear, 6 first threaded rod, 7 movable frame, 8 first guide rail, 9 first slider, 10 second handwheel, 11 second worm, 12 second limit block, 13 second worm gear, 14 second threaded rod, 15 lifting block, 16 second slider, 17 second slide rail, 18 damping guide rail, 19 damping guide block, 20 circuit breaker commutation component. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0026] Reference Figures 1-6A circuit breaker test phase-changing tooling includes a frame 1, the bottom of the frame 1 is fixedly connected with four support legs, each support leg is installed and fixed by bolts, and the bottom of each support leg is equipped with a locking universal wheel to facilitate the movement of the device.

[0027] A first limit block 4 is fixedly connected to the frame 1, and a first worm 3 is provided on the first limit block 4 for rotation therewith. One end of the first worm 3 is fixedly connected to the first hand wheel 2, and the outer wall of the first hand wheel 2 is provided with a protective cover, and the material of the protective cover is rubber to increase comfort. The first worm 3 is engaged with a first worm gear 5, and the first worm gear 5 is rotationally connected to the frame 1. A first threaded rod 6 is provided on the first worm gear 5 for threaded connection therewith, and a first through opening is provided on the first worm gear 5. The outer wall of the first threaded rod 6 and the inner wall of the first through opening are respectively provided with matching external threads and internal threads. The first worm gear 5 and the first threaded rod 6 are coaxially arranged, and can be adjusted in the Y-axis direction through the first hand wheel 2.

[0028] The front end of the first threaded rod 6 is fixedly connected to a movable frame 7, and the top and bottom of the movable frame 7 are fixedly connected to first sliders 9. Two first guide rails 8 are fixedly connected to the frame 1. The two first sliders 9 are respectively sleeved on the outer walls of the corresponding first guide rails 8 and slidably connected thereto. The cooperation between the first guide rails 8 and the first sliders 9 can guide the movement.

[0029] The movable frame 7 is provided with two adjustment mechanisms, which include a second limit block 12 fixedly connected to the front end of the movable frame 7, a second worm 11 rotatably connected to the second limit block 12, and a second hand wheel 10 fixedly connected to one end of the second worm 11. The outer wall of the second hand wheel 10 is provided with a protective cover made of rubber to increase comfort. The second worm 11 is engaged with a second worm gear 13, which is rotatably connected to the second limit block 12, and the second worm gear 13 is provided with a second threaded rod threadedly connected to the second worm gear 13. 14. A second through-hole is provided on the second worm gear 13. The outer wall of the second threaded rod 14 and the inner wall of the second through-hole are respectively provided with matching external threads and internal threads. The second worm gear 13 is coaxially arranged with the second threaded rod 14. The bottom of the second threaded rod 14 is fixedly connected to a lifting block 15. The side wall of the lifting block 15 is fixedly connected to a second slider 16. A second slide rail 17 is fixedly connected to the movable frame 7. The second slider 16 is sleeved on the outer wall of the second slide rail 17 and is slidably connected thereto. The second hand wheel 10 can be rotated to move in the Z-axis direction.

[0030] The front end of the lifting block 15 is fixedly connected to the damping guide rail 18, and the outer wall of the damping guide rail 18 is provided with a damping guide block 19 slidably connected to it. The damping guide block 19 can stay at any position of the damping guide rail 18 and has a certain resistance to ensure the stable position of the circuit breaker phase-changing component 20. The front end of the damping guide block 19 is fixedly connected to the circuit breaker phase-changing component 20, which can open and close the switch in the circuit.

[0031] In the present invention, the staff holds the first hand wheel 2 to rotate and drives the first worm 3 and the first limit block 4 to rotate, and the first worm wheel 5 rotates to drive the first threaded rod 6 and the movable frame 7 to move forward and backward. During this process, the first slider 9 slides on the first guide rail 8 to ensure the stability of the movement of the movable frame 7, and can realize the movement in the Y-axis direction; the staff holds the second hand wheel 10 to rotate and drives the second worm 11 and the second worm wheel 13 to rotate, so that the second threaded rod 14, the lifting block 15, the damping guide rail 18, the damping guide block 19 and the circuit breaker phase-changing component 20 are lifted and moved. During this process, the sliding of the second slider 16 on the second slide rail 17 ensures the stability of the lifting block 15, the damping guide rail 18, the damping guide block 19 and the circuit breaker phase-changing component 20, and can realize the movement in the Z-axis direction; by sliding the damping guide block 19 on the damping guide rail 18, the circuit breaker phase-changing component 20 can be adjusted left and right, and the movement in the X-axis direction can be realized; by adjusting the circuit breaker phase-changing component 20 in the X-, Y- and Z-axis directions, the position of the circuit breaker phase-changing component 20 can be adjusted to meet the requirements of the position of the circuit breaker phase-changing component 20 and the phase-changing operation in coordination with different switches during phase-changing.

[0032] During commutation, the circuit principle is as follows:

[0033] Phase A test: U0-K1 is closed, 10-K6, K5, K2 are closed;

[0034] Phase B test: U0-K2 is closed, 10-K6, K4, K1 are closed;

[0035] Phase C test: U0-K3 is closed, 10-K7, K4, K5, K2 are closed;

[0036] Among them, K1, K2 and K3 are single-pole single-throw pneumatic switches

[0037] K4, K5, K6, and K7 are single-pole double-throw pneumatic switches.

[0038] The utility model adjusts the circuit breaker phase-changing component in the X-axis, Y-axis and Z-axis directions to make the circuit breaker phase-changing component cooperate with different switch positions, thereby solving the problems in the prior art of low test efficiency caused by manual phase-changing due to the long test cycle and the risk of live electricity, and the problem that the slightest carelessness may cause electric shock to personnel and threaten their safety.

Claims

1. A circuit breaker test commutation tool, comprising a frame (1), characterized in that: The frame (1) is fixedly connected with a first limiting block (4), the first limiting block (4) is provided with a first worm (3) rotatably connected thereto, one end of the first worm (3) is fixedly connected with a first hand wheel (2), the first worm (3) is meshed with a first worm gear (5), the first worm gear (5) is rotatably connected to the frame (1), the first worm gear (5) is provided with a first threaded rod (6) threadedly connected thereto, the front end of the first threaded rod (6) is fixedly connected to a moving frame (7), the top and bottom of the moving frame (7) are fixedly connected with a first slider (9), the frame (1) is fixedly connected with two first guide rails (8), the two first sliders (9) are respectively sleeved on the outer walls of the corresponding first guide rails (8) and slidably connected thereto, and the moving frame (7) is provided with two adjustment mechanisms.

2. A circuit breaker test commutation tool according to claim 1, characterized in that: The adjustment mechanism comprises a second limit block (12) fixedly connected to the front end of the movable frame (7); a second worm (11) rotatably connected to the second limit block (12) is provided through the second limit block (12); one end of the second worm (11) is fixedly connected to a second hand wheel (10); the second worm (11) is meshed with a second worm wheel (13); a second threaded rod (14) threadedly connected to the second worm wheel (13) is provided through the second threaded rod (14); the bottom of the second threaded rod (14) is fixedly connected to a lifting block (15). ), the side wall of the lifting block (15) is fixedly connected to a second slider (16), the movable frame (7) is fixedly connected to a second slide rail (17), the second slider (16) is sleeved on the outer wall of the second slide rail (17) and is slidably connected thereto, the front end of the lifting block (15) is fixedly connected to a damping guide rail (18), the outer wall of the damping guide rail (18) is sleeved with a damping guide block (19) slidably connected thereto, and the front end of the damping guide block (19) is fixedly connected to a circuit breaker phase-changing component (20).

3. A circuit breaker test commutation tool according to claim 2, characterized in that: The outer walls of the first hand wheel (2) and the second hand wheel (10) are both covered with protective sleeves, and the material of the protective sleeves is rubber.

4. A circuit breaker test commutation tool according to claim 1, characterized in that: The first worm wheel (5) is provided with a first opening, the outer wall of the first threaded rod (6) and the inner wall of the first opening are provided with matching external threads and internal threads respectively, and the first worm wheel (5) and the first threaded rod (6) are coaxially arranged.

5. The circuit breaker test commutation tool according to claim 2, characterized in that: The second worm gear (13) is provided with a second opening, the outer wall of the second threaded rod (14) and the inner wall of the second opening are provided with matching external threads and internal threads respectively, and the second worm gear (13) and the second threaded rod (14) are coaxially arranged.

6. A circuit breaker test commutation tool according to claim 1, characterized in that: Four supporting legs are fixedly connected to the bottom of the frame (1), each of the supporting legs is installed and fixed by bolts, and a locking universal wheel is installed at the bottom of each supporting leg.

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