A circuit breaker assembly fixture for a distribution cabinet

Abstract

This invention relates to the field of circuit breaker assembly, and more particularly to a circuit breaker assembly fixture for distribution cabinets. The fixture includes a base frame with pulleys distributed at its four corners. Side frames are fixed to both sides of the upper end of the base frame, and a lifting platform is installed inside each side frame. A lifting mechanism is mounted on the side frame to drive the lifting platform to move up and down within the side frame. A support platform for installing the circuit breaker is linearly slidably mounted on the upper end of the lifting platform. A fixed frame is fixed to the upper end of the side frame, and clamping plates for holding the circuit breaker are symmetrically and rotatably mounted on both sides of the fixed frame. Through slots are distributed at the four corners of the upper end of the support platform. A leveling mechanism is provided at the bottom of the support platform, including two pairs of lifting plates that are movably installed in corresponding through slots. This invention provides a fixture with a reasonable structure, complete functions, and safe and convenient operation. Furthermore, the assembly process will significantly improve production efficiency, product quality, and operational safety, effectively solving the problems in current distribution cabinet assembly production lines.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker assembly technology, and more particularly to a circuit breaker assembly fixture for distribution cabinets. Background Technology

[0002] In the production and assembly process of distribution cabinets, the installation of frame circuit breakers has always been a difficult point in the production process due to their large size and heavy weight. The traditional assembly method mainly relies on 2-3 workers to work together to move, align and fix them. This process has the following problems: (1) High labor intensity and high safety risk: manual handling of heavy electrical components can easily lead to safety accidents such as muscle strain and crushing injuries; (2) Low assembly efficiency and poor accuracy: it is difficult for multiple people to accurately align the guide rails and mounting holes, and repeated adjustments are often required, which reduces the assembly efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a circuit breaker assembly fixture for a power distribution cabinet, thereby solving the aforementioned technical problems.

[0004] The objective of this invention can be achieved through the following technical solutions: A circuit breaker assembly fixture for a distribution cabinet includes a base frame with pulleys at its four corners. Side frames are fixed to both sides of the upper end of the base frame, and a lifting platform is installed inside each side frame. A lifting mechanism is installed on the side frame to drive the lifting platform to move up and down within the side frame. A support platform for installing the circuit breaker is linearly slidably mounted on the upper end of the lifting platform. A fixed frame is fixed to the upper end of the side frame, and clamping plates for holding the circuit breaker are symmetrically and rotatably mounted on both sides of the fixed frame. Through slots are distributed at the four corners of the upper end of the support platform. A leveling mechanism is provided at the bottom of the support platform. The leveling mechanism includes two pairs of lifting plates, which are movably installed in corresponding through slots. The lifting plates are used to level the circuit breaker left and right or front and back.

[0005] As a further embodiment of the present invention: clamping gears are fixedly sleeved on the rotating shafts at both ends of the clamping plate, an electric lifter is fixedly installed at the center of the bottom of the fixing frame, a connecting plate is fixedly connected to the output end of the electric lifter, lifting tooth plates are fixedly installed at both ends of the connecting plate, and the two sides of the lifting tooth plates mesh with the clamping gears.

[0006] As a further embodiment of the present invention: a slide rail is provided on the upper end of the lifting platform along the length direction, and the bearing platform is adapted to be slidably installed on the slide rail.

[0007] As a further embodiment of the present invention: the leveling mechanism further includes a set of clutch brackets arranged symmetrically on the left and right and a set of rotating shafts arranged symmetrically on the front and back. The top of the clutch bracket is slidably mounted with an upper toothed plate, and both ends of the bottom of the clutch bracket are slidably mounted with lower toothed plates. Both ends of the rotating shaft are fixedly sleeved with clutch gears, and the clutch gears mesh with the upper toothed plate or the lower toothed plate.

[0008] As a further embodiment of the present invention: a toothed rod is fixedly provided at the bottom of the lifting plate, and electric telescopic rods are fixedly provided at both ends of the rotating shaft. A transmission gear is rotated at the output end of the electric telescopic rod, and the transmission gear meshes with the corresponding toothed rod.

[0009] As a further embodiment of the present invention: an electric lifter II is fixedly mounted on the clutch bracket, and a lifting seat is fixedly connected to the output end of the electric lifter II. Both ends of the lifting seat are rotatably engaged with one end of a connecting rod, and the other end of the connecting rod is rotatably engaged with the corresponding lower gear plate.

[0010] As a further aspect of the present invention: a bidirectional motor is fixedly installed on the support platform, and drive gears are fixedly sleeved on the output shafts at both ends of the bidirectional motor, with the top ends of the drive gears and the clutch gears being flush.

[0011] As a further aspect of the present invention, the distance between the upper tooth plate and the lower tooth plate should be greater than the diameter of the clutch gear.

[0012] As a further embodiment of the present invention: adjusting cylinders are fixedly provided on both sides of the bottom end of the support platform, the output end of the adjusting cylinders is connected to the clutch bracket, a sliding rod is fixedly provided at the bottom of the support platform, and the clutch bracket is slidably mounted on the sliding rod.

[0013] The beneficial effects of this invention are: (1) By setting up a base frame and side frame as the basic structure of the tooling, when installing the circuit breaker, the circuit breaker is transported and placed on the support platform. The leveling mechanism is used to make the circuit breaker perfectly parallel and aligned with the guide rail in the distribution cabinet. Then, the clamping plate is used to clamp and fix the circuit breaker to keep it stable. Then, the base frame is pushed to one side of the distribution cabinet. The lifting platform is lifted upward by the elevator so that the circuit breaker is aligned with the installation guide rail in the distribution cabinet. Then, the clamping plate is released and the support platform is pushed horizontally into the distribution cabinet. The circuit breaker is fixed and locked with bolts to complete the entire assembly process of the circuit breaker. The tooling structure is reasonable, the function is complete, the operation is safe and convenient, and the assembly process will significantly improve production efficiency, product quality and operation safety. It can effectively solve the current problems in the distribution cabinet assembly production line.

[0014] (2) By setting up a leveling mechanism, the upper and lower gear plates are respectively engaged with the clutch gear by controlling the lifting and lowering movement of the clutch bracket. When the upper gear plate is engaged with the clutch gear, the lifting plate on the same side can be lifted from the lower side to achieve the left and right leveling process of the circuit breaker. When the lower gear plate is engaged with the clutch gear, the lifting plate on the same end can be lifted from the lower end to achieve the front and rear leveling process of the circuit breaker. This ensures that the circuit breaker is aligned with the installation guide rail in the distribution cabinet. The leveling process in different directions is achieved by using the clutch gear and the upper and lower gear plates respectively. The transmission structure is reliable and stable, and the adjustment process is ingenious and flexible, which greatly improves the accuracy and efficiency of the circuit breaker assembly process. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the support platform in this invention.

[0018] Figure 3 This is a schematic diagram of the lifting platform in this invention.

[0019] Figure 4 This is a schematic diagram of the bottom structure of the support platform in this invention.

[0020] Figure 5 This is a schematic diagram of the leveling mechanism in this invention.

[0021] Figure 6 This is a schematic diagram of the clutch support structure in this invention.

[0022] Figure 7 This is a schematic diagram of the present invention when it is leveled left and right.

[0023] Figure 8 This is a schematic diagram of the state of the present invention during the initial and subsequent leveling.

[0024] In the diagram: 1. Base frame; 11. Pulley; 2. Side frame; 3. Lifting machine; 4. Lifting platform; 41. Fixed frame; 42. Clamping plate; 43. Clamping gear; 44. Electric lifting device one; 45. Connecting plate; 46. Lifting gear plate; 47. Slide rail; 5. Bearing platform; 51. Through groove; 52. Adjusting cylinder; 53. Slide rod; 6. Leveling mechanism; 61. Lifting plate; 62. Gear; 63. Clutch bracket; 631. Upper gear plate; 632. Lower gear plate; 633. Electric lifting device two; 634. Lifting seat; 635. Connecting rod; 64. Rotating shaft; 641. Electric telescopic rod; 642. Transmission gear; 643. Clutch gear; 65. Bidirectional motor; 651. Drive gear. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-5 As shown, the present invention is a circuit breaker assembly fixture for a distribution cabinet, including a base frame 1, with pulleys 11 distributed at the four corners of the base frame 1, and side frames 2 fixed on both sides of the upper end of the base frame 1. A lifting platform 4 is provided inside the side frame 2, and a lifting machine 3 is provided on the side frame 2 to drive the lifting platform 4 to move up and down within the side frame 2. A support platform 5 for installing the circuit breaker is linearly slidably installed on the upper end of the lifting platform 4. A fixing frame 41 is fixed on the upper end of the side frame 2, and clamping plates 42 for holding the circuit breaker are symmetrically rotated on both sides of the fixing frame 41. Through slots 51 are distributed through the four corners of the upper end of the support platform 5. A leveling mechanism 6 is provided at the bottom of the support platform 5. The leveling mechanism 6 includes two pairs of lifting plates 61, which are movably installed in the corresponding through slots 51. The lifting plates 61 are used to level the circuit breaker left and right or front and back.

[0027] Specifically, by setting up a base frame 1 and a side frame 2 as the basic structure of the tooling, when installing the circuit breaker, the circuit breaker is transported and placed on the support platform 5. The leveling mechanism 6 is used to ensure that the circuit breaker is perfectly parallel and aligned with the guide rails inside the distribution cabinet. Then, the clamping plate 42 is used to clamp and fix the circuit breaker to maintain stability. Subsequently, the base frame 1 is pushed to one side of the distribution cabinet, and the lifting platform 4 is lifted upwards using the lifting platform 3, so that the circuit breaker is aligned with the installation guide rails inside the distribution cabinet. Then, the clamping plate 42 is released, and the support platform 5 is pushed horizontally into the distribution cabinet. The circuit breaker is then fixed and locked with bolts, completing the entire assembly process of the circuit breaker. The tooling structure is reasonable, the functions are complete, and the operation is safe and simple. Moreover, the assembly process will significantly improve production efficiency, product quality, and operational safety, and can effectively solve the problems in the current distribution cabinet assembly production line.

[0028] It should be noted that the elevator 3 in this application adopts a double-chain lifting structure, powered by an AC geared motor with an electromagnetic brake. The motor drives a long, rigid synchronous shaft, with drive sprockets installed at both ends of the shaft, driving two high-strength roller chains to move synchronously. This structure has the advantages of strong load capacity, stable operation, robust structure, and easy maintenance, and can meet the requirements of smooth and reliable lifting of heavy circuit breakers. The above structure has been widely used in the industrial field and is known in the prior art, so it will not be described in detail here.

[0029] like Figure 3As shown, clamping gears 43 are fixedly sleeved on the rotating shafts 64 at both ends of the clamping plate 42. An electric lifter 44 is fixedly installed at the center of the bottom of the fixed frame 41. A connecting plate 45 is fixedly connected to the output end of the electric lifter 44. Lifting tooth plates 46 are fixedly installed at both ends of the connecting plate 45. Both sides of the lifting tooth plates 46 mesh with the clamping gears 43.

[0030] Specifically, by setting clamping plate 42, after the circuit breaker is placed on the bearing platform 5, the electric lift 44 is started, which drives the connecting plate 45 to rise. During the upward movement of the connecting plate 45, the lifting tooth plates 46 at both ends will rise synchronously. When the lifting tooth plates 46 move upward, they will drive the clamping plate 42 to close inward through the clamping gear 43 until the clamping plate 42 clamps and fixes the circuit breaker in the center, so that it remains stable during the assembly process.

[0031] like Figure 3 As shown, a slide rail 47 is provided on the upper end of the lifting platform 4 along the length direction, and the bearing platform 5 is adapted to slide on the slide rail 47.

[0032] Specifically, by setting the slide rail 47, when the clamping plate 42 is released, the support platform 5 will slide linearly along the slide rail 47 on the upper end of the lifting platform 4, so that the circuit breaker can be smoothly pushed into the distribution cabinet. After the circuit breaker is assembled, the support platform 5 will reverse and reset, ready for the next assembly process.

[0033] like Figures 5-8 As shown, the leveling mechanism 6 also includes a set of clutch brackets 63 arranged symmetrically on the left and right and a set of rotating shafts 64 arranged symmetrically on the front and back. The top of the clutch bracket 63 is slidably mounted with an upper toothed plate 631, and both ends of the bottom of the clutch bracket 63 are slidably mounted with lower toothed plates 632. Both ends of the rotating shaft 64 are fixedly sleeved with clutch gears 643, and the clutch gears 643 mesh with the upper toothed plate 631 or the lower toothed plate 632.

[0034] Furthermore, a rack 62 is fixedly provided at the bottom of the lifting plate 61, and electric telescopic rods 641 are fixedly provided at both ends of the rotating shaft 64. A transmission gear 642 is rotated at the output end of the electric telescopic rod 641, and the transmission gear 642 meshes with the corresponding rack 62.

[0035] It should be noted that in this application, the side of the rack 62 with tooth grooves is all set inward, so that the rack plate and the corresponding lifting plate 61 can perform corresponding lifting actions with the transmission gear 642.

[0036] Furthermore, an electric lifter 633 is fixedly mounted on the clutch bracket 63. The output end of the electric lifter 633 is fixedly connected to a lifting seat 634. Both ends of the lifting seat 634 are rotatably engaged with one end of the connecting rod 635, and the other end of the connecting rod 635 is rotatably engaged with the corresponding lower gear plate 632.

[0037] Furthermore, a bidirectional motor 65 is fixedly installed on the support platform 5, and a drive gear 651 is fixedly sleeved on the output shafts at both ends of the bidirectional motor 65. The top of the drive gear 651 is flush with the top of the clutch gear 643.

[0038] Specifically, such as Figure 7 As shown, by setting the leveling mechanism 6, when the circuit breaker needs to be leveled left and right, the rack 62 of the lower end lifting plate 61 normally meshes with the transmission gear 642, while the transmission gear 642 at the other end is pushed out by the electric telescopic rod 641, causing the transmission gear 642 at that end to disengage from the rack 62. At this time, the clutch bracket 63 is controlled to lift upward until the lower gear plate 632 meshes with the clutch gear 643. When the electric lifter 633 drives the lower gear plates 632 at both ends to move away from each other through the lifting seat 634 and the connecting rod 635, the lower gear plate 632 will drive the rotating shafts 64 at both ends to rotate through the clutch gear 643, and the rotation directions are opposite. The rotating shaft 64 drives the lifting plate 61 on one side to lift upward at the same time through the transmission gear 642, while the lifting plate 61 on the other side will not move due to the disengagement of the transmission gear 642. Thus, the lifting plate 61 can lift the circuit breaker from the lower side to realize the left and right leveling process of the circuit breaker.

[0039] More specifically, such as Figure 8 As shown, when the circuit breaker needs to be leveled, the transmission gears 642 at both ends of the rotating shaft 64 are normally engaged with the rack 62. At this time, the clutch bracket 63 is controlled to descend until the upper gear plate 631 engages with the clutch gear 643. When the bidirectional motor 65 drives the drive gears 651 at both ends to rotate, the drive gears 651 will drive the upper gear plates 631 on both sides to move to one end. During the movement, the upper gear plates 631 will drive the rotating shafts 64 at both ends to rotate in the same direction through the clutch gear 643, thereby causing the rotating shafts 64 to drive the transmission gears 642 at both ends to rotate. This causes the lifting plate 61 at one end to rise, while the lifting plate 61 at the other end moves downward. The raised lifting plate 61 can lift the circuit breaker from the lower end to achieve the front and rear leveling process of the circuit breaker.

[0040] like Figure 6 As shown, the distance between the upper gear plate 631 and the lower gear plate 632 should be greater than the diameter of the clutch gear 643. The distance between the upper gear and the lower gear should ensure that the clutch gear 643 can only mesh with one of them, so as to avoid the situation where the clutch gear 643 meshes with both the upper gear plate 631 and the lower gear plate 632 at the same time due to insufficient clutch distance.

[0041] like Figures 4-6As shown, adjusting cylinders 52 are fixed on both sides of the bottom end of the support platform 5. The output end of the adjusting cylinder 52 is connected to the clutch bracket 63. A sliding rod 53 is fixed on the bottom of the support platform 5. The clutch bracket 63 is slidably mounted on the sliding rod 53.

[0042] Specifically, the up-and-down movement of the clutch bracket 63 is achieved by adjusting the cylinder 52. The adjusting cylinder 52 will drive the clutch bracket 63 to slide up and down along the slide rod 53 to achieve the switching of the clutch state. During this process, the clutch bracket 63 always slides on the slide rod 53, thereby ensuring that the clutch bracket 63 will not easily wobble left and right during the transmission process, which would cause the teeth to disengage.

[0043] The working principle of this invention is as follows: Figures 1-8As shown, during use, the base frame 1 and side frame 2 serve as the basic structure of the tooling. When installing the circuit breaker, the circuit breaker is transported and placed on the support platform 5, and the leveling mechanism 6 is used to make the circuit breaker perfectly parallel and aligned with the guide rails in the distribution cabinet. When the circuit breaker needs to be leveled left and right, the rack 62 of the lower end lifting plate 61 normally meshes with the transmission gear 642, while the transmission gear 642 at the other end is pushed out by the electric telescopic rod 641, causing the transmission gear 642 at that end to disengage from the rack 62. At this time, the clutch bracket 63 is controlled to lift upward until the lower gear plate 632 meshes with the clutch gear 643. When the electric lifter 633 drives the lower gear plates 632 at both ends to move away from each other through the lifting seat 634 and the connecting rod 635, the lower gear plate 632 will drive the rotating shafts 64 at both ends to rotate through the clutch gear 643, and the rotation directions are opposite. The rotating shaft 64 drives the lifting plate 61 on one side to lift upward at the same time through the transmission gear 642, while the lifting plate 61 on the other side will not move due to the disengagement of the transmission gear 642. Thus, the lifting plate 61 can lift the circuit breaker from the lower side to realize the left and right leveling process of the circuit breaker. When the circuit breaker needs to be leveled, the transmission gears 642 at both ends of the rotating shaft 64 are normally engaged with the rack 62. At this time, the clutch bracket 63 is controlled to descend until the upper gear plate 631 engages with the clutch gear 643. When the bidirectional motor 65 drives the drive gears 651 at both ends to rotate, the drive gears 651 will drive the upper gear plates 631 on both sides to move to one end. During the movement, the upper gear plates 631 will drive the rotating shafts 64 at both ends to rotate in the same direction through the clutch gear 643, thereby causing the rotating shafts 64 to drive the transmission gears 642 at both ends to rotate. This causes the lifting plate 61 at one end to rise, while the lifting plate 61 at the other end moves downward. The raised lifting plate 61 can lift the circuit breaker from the lower end to achieve the front and rear leveling process of the circuit breaker. After leveling, the circuit breaker is clamped and fixed in place by clamping plate 42. Then, the base frame 1 is pushed to one side of the distribution cabinet, and the lifting platform 4 is lifted upward by the lifting machine 3 so that the circuit breaker is aligned with the installation guide rail in the distribution cabinet. Then, clamping plate 42 is released, and the bearing platform 5 is pushed horizontally into the distribution cabinet. The circuit breaker is then fixed and locked with bolts to complete the entire assembly process of the circuit breaker.

[0044] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A circuit breaker assembly fixture for a distribution cabinet, comprising a base frame (1), wherein pulleys (11) are arranged at the four corners of the base frame (1), and side frames (2) are fixed on both sides of the upper end of the base frame (1), characterized in that, The side frame (2) is equipped with a lifting platform (4) inside. The side frame (2) is equipped with a lifting machine (3) to drive the lifting platform (4) to move up and down inside the side frame (2). The upper end of the lifting platform (4) is linearly slidably equipped with a bearing platform (5) for installing circuit breakers. The upper end of the side frame (2) is fixedly equipped with a fixed frame (41). The fixed frame (41) is symmetrically rotated on both sides with clamping plates (42) for clamping circuit breakers. The upper end of the bearing platform (5) is provided with through slots (51) distributed through the four corners. The bottom of the bearing platform (5) is equipped with a leveling mechanism (6). The leveling mechanism (6) includes two pairs of lifting plates (61). The lifting plates (61) are movably installed in the corresponding through slots (51). The lifting plates (61) are used to level the circuit breaker left and right or front and back. The leveling mechanism (6) further includes a set of clutch brackets (63) arranged symmetrically on the left and right and a set of rotating shafts (64) arranged symmetrically on the front and back. The clutch brackets (63) are slidably mounted with an upper toothed plate (631) at the top and lower toothed plates (632) at both ends of the bottom of the clutch brackets (63). The rotating shafts (64) are fixedly sleeved with clutch gears (643) at both ends. The clutch gears (643) mesh with the upper toothed plate (631) or the lower toothed plate (632). The bottom of the lifting plate (61) is fixedly provided with a rack (62), and the two ends of the rotating shaft (64) are fixedly provided with electric telescopic rods (641). The output end of the electric telescopic rod (641) is provided with a transmission gear (642), and the transmission gear (642) meshes with the corresponding rack (62). The clutch bracket (63) is fixedly provided with an electric lifter (633), and the output end of the electric lifter (633) is fixedly connected to a lifting seat (634). Both ends of the lifting seat (634) are rotatably engaged with one end of the connecting rod (635), and the other end of the connecting rod (635) is rotatably engaged with the corresponding lower tooth plate (632).

2. The circuit breaker assembly fixture for a distribution cabinet according to claim 1, characterized in that, Clamping gears (43) are fixedly sleeved on the rotating shafts (64) at both ends of the clamping plate (42). An electric lifter (44) is fixedly installed at the center of the bottom of the fixed frame (41). A connecting plate (45) is fixedly connected to the output end of the electric lifter (44). Lifting tooth plates (46) are fixedly installed at both ends of the connecting plate (45). Both sides of the lifting tooth plates (46) mesh with the clamping gears (43).

3. The circuit breaker assembly fixture for a distribution cabinet according to claim 1, characterized in that, The upper end of the lifting platform (4) is provided with a slide rail (47) along the length direction, and the bearing platform (5) is adapted to slide on the slide rail (47).

4. The circuit breaker assembly fixture for a distribution cabinet according to claim 1, characterized in that, The support platform (5) is fixedly equipped with a bidirectional motor (65), and drive gears (651) are fixedly sleeved on the output shafts at both ends of the bidirectional motor (65). The top of the drive gears (651) is flush with the top of the clutch gears (643).

5. The circuit breaker assembly fixture for a distribution cabinet according to claim 1, characterized in that, The distance between the upper toothed plate (631) and the lower toothed plate (632) is greater than the diameter of the clutch gear (643).

6. The circuit breaker assembly fixture for a distribution cabinet according to claim 5, characterized in that, Adjustment cylinders (52) are fixed on both sides of the bottom end of the support platform (5). The output end of the adjustment cylinder (52) is connected to the clutch bracket (63). A slide rod (53) is fixed at the bottom of the support platform (5). The clutch bracket (63) is slidably mounted on the slide rod (53).

Images