Circuit breaker closing spring assembler

Abstract

The utility model discloses a breaker closing spring assembler, and relates to the spring assembling technology field, the breaker closing spring assembler comprises an L-shaped plate and fixed plates, the fixed plates are fixedly arranged on two sides of the upper surface of the L-shaped plate, a movable plate is arranged between the two fixed plates, a screw rod is sleeved in the movable plate in a threaded manner, and the screw rod is fixed on the L-shaped plate. The two ends of the lead screw are rotationally connected with the corresponding fixed plates, fixed blocks are fixedly arranged at one ends of the two fixed plates and one end of the movable plate, and inserting rods are fixedly arranged on the upper sides of the fixed blocks. Rotating rods are rotationally arranged on the two sides of the fixing block, rotating strips are fixedly arranged at one ends of the rotating rods, stop rods are fixedly arranged at the ends, away from the rotating rods, of the two rotating strips, and a limiting mechanism for limiting rotation of the rotating rods is arranged on one side of the fixing block. According to the spring stretching device, highly continuous spring stretching work can be conducted, time wasted by resetting of the device can be shortened, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring assembly, in particular to a closing spring assembler for a circuit breaker. Background Art

[0002] At present, the development technologies of circuit breakers at home and abroad have become increasingly mature. However, during assembly, a spring with a tensile force of thousands of Newtons must be stretched to a certain length without damaging the anti-corrosion treatment on the spring surface. Due to the small internal space of the spring operating mechanism of the circuit breaker, it is very difficult to stretch the spring inside the mechanism.

[0003] Among them, the publication number CN202084457U discloses an assembly device for the closing spring of an indoor high-voltage vacuum circuit breaker. A threaded hole is opened in the center of the support arm. A lead screw is installed in the threaded hole. A handle is fixed at the upper end of the lead screw. A support block is sleeved at the lower end of the lead screw. The support arm is horizontally arranged, and its two ends are respectively hinged to the upper ends of the support frames through support arm pins. The two sides of the support block are respectively hinged to one end of the support plate through pins. The lower end of the support frame is installed with a clamping plate through a connecting shaft, and a hoop is fixed on the clamping plate. There are still defects in this technical solution:

[0004] In this technical solution, every time a spring is stretched, the lead screw needs to be reversed to reset the hoop. During the batch spring assembly process, the reset process will waste a lot of time, thereby reducing the work efficiency. Summary of the Utility Model

[0005] In view of the problems existing in the above-mentioned existing assembly device for the closing spring of an indoor high-voltage vacuum circuit breaker, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a closing spring assembler for a circuit breaker, which solves the problem that in the existing assembly device for the closing spring of an indoor high-voltage vacuum circuit breaker, every time a spring is stretched, the lead screw needs to be reversed to reset the hoop. During the batch spring assembly process, the reset process will waste a lot of time, thereby reducing the work efficiency.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A closing spring assembler for a circuit breaker includes an L-shaped plate and a fixing plate. The fixing plate is fixedly arranged on both sides of the upper surface of the L-shaped plate. A movable plate is arranged between the two fixing plates. A lead screw is threadedly sleeved inside the movable plate. Both ends of the lead screw are rotatably connected to the corresponding fixing plates. Fixing blocks are fixedly arranged at one ends of the two fixing plates and the movable plate. An insertion rod is fixedly arranged on the upper side of the fixing block;

[0009] Rotating rods are arranged on both sides of the fixed block in a rotatable manner. One end of each rotating rod is fixedly provided with a rotating bar. One end of the two rotating bars away from the rotating rods is fixedly provided with a blocking rod. A limiting mechanism for restricting the rotation of the rotating rod is arranged on one side of the fixed block.

[0010] Preferably, the limiting mechanism includes a first gear and a second gear. The first gear is fixedly sleeved on the rod wall of one of the rotating rods. The second gear is meshed and arranged on one side of the first gear. A square hole is formed inside the second gear. A square rod is slidably arranged inside the square hole. One end of the square rod is fixedly connected to the corresponding fixed block.

[0011] Preferably, a retaining ring is fixedly arranged at one end of the square rod away from the fixed block.

[0012] Preferably, a spring is movably sleeved on the rod wall of the square rod. Two ends of the spring are respectively fixedly connected to the corresponding retaining ring and the second gear.

[0013] Preferably, a handle is fixedly sleeved at one end of the lead screw.

[0014] Preferably, one end of the movable plate abuts against the inner side wall of the L-shaped plate.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. In the present utility model, by inserting the inserting rods on one side and in the middle into the clamping plates at both ends of the spring to be stretched respectively, and then rotating the lead screw, the lead screw drives the movable plate to move, so that the stretching of the spring can be completed. After removing the stretched spring, the clamping plates at both ends of the new spring are sleeved on the outer walls of the inserting rods on the other side and in the middle, and then the lead screw is rotated in the reverse direction, so that the movable plate can be reset. Even during the process of resetting the movable plate, the stretching of the spring can be completed, which can reduce the time wasted by the device during resetting and improve work efficiency.

[0017] 2. In the present utility model, by pulling the second gear to release the limit on the first gear, and then rotating the rotating rod to rotate the blocking rod to the upper side of the inserting rod, the clamping plate of the spring can be limited, which can prevent the clamping plate of the spring from slipping off from the upper end of the inserting rod when stretching the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a closing spring assembler for a circuit breaker proposed by the present utility model;

[0020] Figure 2 is Figure 1 An enlarged schematic view of the structure of part A in the middle;

[0021] Figure 3 is Figure 2 A side view structural schematic diagram of the gear and the square rod in the middle.

[0022] Explanation of reference numerals:

[0023] 1. L-shaped plate; 2. Fixed plate; 3. Movable plate; 4. Lead screw; 5. Handle; 6. Fixed block; 7. Insert rod; 8. Rotating plate; 9. Rotating rod; 10. Stop rod; 11. First gear; 12. Square rod; 13. Second gear; 14. Stop ring; 15. Spring. Specific embodiments

[0024] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] An embodiment of the present utility model discloses a circuit breaker closing spring assembler.

[0026] Referring to Figures 1-3 , a circuit breaker closing spring assembler includes an L-shaped plate 1 and a fixed plate 2. The fixed plate 2 is fixedly arranged on both sides of the upper surface of the L-shaped plate 1. A movable plate 3 is arranged between the two fixed plates 2. A lead screw 4 is threadedly sleeved inside the movable plate 3. Both ends of the lead screw 4 are rotatably connected to the corresponding fixed plates 2. One end of the lead screw 4 is fixedly sleeved with a handle 5 to facilitate the rotation of the lead screw 4. Fixed blocks 6 are fixedly arranged at one ends of the two fixed plates 2 and the movable plate 3. One end of the movable plate 3 abuts against the inner side wall of the L-shaped plate 1, so that the movable plate 3 cannot rotate, that is, it can slide stably. An insert rod 7 is fixedly arranged above the fixed block 6;

[0027] Rotating rods 9 are rotatably arranged on both sides of the fixed block 6. A rotating bar 8 is fixedly arranged at one end of the rotating rod 9. Stop rods 10 are fixedly arranged at one ends of the two rotating bars 8 far away from the rotating rods 9.

[0028] Referring to Figures 1-3 , a limiting mechanism for restricting the rotation of the rotating rod 9 is arranged on one side of the fixed block 6. The limiting mechanism includes a first gear 11 and a second gear 13. The first gear 11 is fixedly sleeved on the rod wall of the rotating rod 9 on one side. The second gear 13 is meshed with one side of the first gear 11. A square hole is opened inside the second gear 13. A square rod 12 is slidably arranged inside the square hole. One end of the square rod 12 is fixedly connected to the corresponding fixed block 6.

[0029] Referring to Figures 1-3, a retaining ring 14 is fixedly arranged at one end of the square rod 12 far away from the fixed block 6, which can prevent the second gear 13 from slipping off the rod wall of the square rod 12 as much as possible. A spring 15 is movably sleeved on the rod wall of the square rod 12, and two ends of the spring 15 are respectively fixedly connected with the corresponding retaining ring 14 and the second gear 13, which can limit the second gear 13.

[0030] In the present utility model, during use, the insertion rods 7 on one side and in the middle are respectively inserted into the clamping plates at both ends of the spring 15 to be stretched. The second gear 13 is pulled to release the limit on the first gear 11, and then the rotating rod 9 is rotated to rotate the blocking rod 10 to the upper side of the insertion rod 7, that is, to limit the clamping plate of the spring, which can prevent the spring clamping plate from slipping off the upper end of the insertion rod 7 when the spring is stretched. Then the lead screw 4 is rotated, and the lead screw 4 drives the movable plate 3 to move, and thus the stretching of the spring 15 can be completed. The stretched spring 15 is taken off, and the clamping plates at both ends of the new spring 15 are sleeved on the outer walls of the insertion rods 7 on the other side and in the middle. Then the lead screw 4 is reversed, so that the movable plate 3 is reset. Even during the process of resetting the movable plate 3, the stretching of the spring 15 can be completed, which can reduce the time wasted by the device for resetting and improve the work efficiency.

[0031] Only some exemplary embodiments of the present utility model are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A circuit breaker closing spring assembler, comprising an L-shaped plate (1) and a fixing plate (2), characterized in that: The fixed plates (2) are fixedly arranged on both sides of the upper surface of the L-shaped plate (1); a movable plate (3) is arranged between the two fixed plates (2); a screw rod (4) is arranged on the internal thread sleeve of the movable plate (3); both ends of the screw rod (4) are rotatably connected to the corresponding fixed plates (2); a fixed block (6) is fixedly arranged on one end of the two fixed plates (2) and the movable plate (3); and an insertion rod (7) is fixedly arranged on the upper side of the fixed block (6); Rotating rods (9) are rotatably provided on both sides of the fixed block (6), a rotating bar (8) is fixedly provided on one end of the rotating rod (9), a stopper rod (10) is fixedly provided on one end of the two rotating bars (8) away from the rotating rod (9), and a limiting mechanism for limiting the rotation of the rotating rod (9) is provided on one side of the fixed block (6).

2. The circuit breaker closing spring assembler according to claim 1, characterized in that: The limiting mechanism comprises a first gear (11) and a second gear (13); the first gear (11) is fixedly sleeved on a rod wall of the rotating rod (9) on one side; the second gear (13) is meshedly arranged on one side of the first gear (11); a square hole is provided inside the second gear (13); a square rod (12) is slidably arranged inside the square hole; one end of the square rod (12) is fixedly connected to a corresponding fixing block (6).

3. The circuit breaker closing spring assembler according to claim 2, characterized in that: A retaining ring (14) is fixedly provided at one end of the square rod (12) away from the fixing block (6).

4. The circuit breaker closing spring assembler according to claim 3, characterized in that: A spring (15) is movably sleeved on the rod wall of the square rod (12), and two ends of the spring (15) are respectively fixedly connected to a corresponding retaining ring (14) and a second gear (13).

5. The circuit breaker closing spring assembler according to claim 1, characterized in that: One end of the screw rod (4) is fixedly sleeved with a handle (5).

6. The circuit breaker closing spring assembler according to claim 1, characterized in that: One end of the movable plate (3) abuts against the inner side wall of the L-shaped plate (1).

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