A circuit breaker crank arm box integrated assembly device

Abstract

The utility model belongs to integrated assembly technical field discloses a kind of integrated assembly devices of circuit breaker crank arm box, the top of rack is provided with guide rail, the both ends of rack are provided with first support and second support, the top of first support is provided with first locking lifting device, the top of second support is provided with second locking lifting device;The overturning frame is slidably installed on guide rail, the overturning frame includes sliding plate slidably connected on the guide rail, the sliding plate is hingedly connected with overturning plate, the both ends of overturning plate slide rail are slidably provided with first clamping plate and second clamping plate;Cage support is arranged between first support and second support, press is fixedly installed in cage support, the outside of press is provided with a plurality of bolt fastening devices around.The utility model can realize high-voltage circuit breaker crank arm box integrated assembly, complete the assembly of crank arm box from several parts to component, realize complete assembly process.

Description

Technical Field

[0001] This utility model belongs to the field of integrated assembly technology, specifically relating to an integrated assembly device for a circuit breaker crank arm box. Background Technology

[0002] The crank arm box is a key transmission component in high-voltage circuit breakers, serving to encapsulate insulating gas and change the direction of transmission. The design of high-voltage circuit breaker crank arm boxes is largely based on their connection and installation with the circuit breaker support cylinder and operating mechanism. The crank arm box is equipped with an inner crank arm, an outer crank arm, and a drive shaft. It includes an inner crank arm cavity and a mounting flange, which connects to the circuit breaker support cylinder, forming a sealed container for encapsulating insulating gas. The inner crank arm is hinged to an insulating tie rod, which is connected to the moving end of the circuit breaker's arc-extinguishing chamber. High-voltage circuit breakers are electrical equipment used for control and protection in power systems. As a crucial component of high-voltage circuit breakers, and as a power transmission container, the crank arm box requires high levels of airtightness and comprehensive mechanical performance. Therefore, it is essential to ensure proper assembly of all components, flexible rotation of transmission parts, and high overall airtightness. The existing assembly process of high-voltage circuit breaker crank arm boxes all adopts traditional operation modes such as manual handling, flipping, manual pressing, and manual torque tightening of bolts, which is labor-intensive and difficult to guarantee assembly quality.

[0003] Chinese patent publication number CN110211829A, entitled "Armchair Box Assembly Fixture," describes a fixture comprising a mobile trolley and a conveyor rail. The mobile trolley includes a body with rolling wheels and an armchair box support structure. The rolling wheels provide rolling support on the conveyor rail. The armchair box support structure allows the armchair box to be supported on the trolley body with its connecting flange end face parallel to the circuit breaker's mounting flange end face. The conveyor rail includes a guide rail and traveling wheels. The guide rail guides the mobile trolley's movement, while the traveling wheels provide rolling support on the circuit breaker mounting base. The conveyor rail enters from the circuit breaker's lower channel opening and moves to the armchair box mounting location. While this patent application addresses the issue of armchair box damage during transportation, it does not solve the transportation and rotation problems encountered during the integrated assembly process of the armchair box from parts to components. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide an integrated assembly device for a circuit breaker crank arm box. The device uses a flipping frame to move the crank arm box so that it can be flipped after assembly on one side, which meets the multi-hole installation requirements of the crank arm box internal components. It can realize the integrated assembly of high voltage circuit breaker crank arm boxes, complete the assembly of the crank arm box from several parts to components, and realize a complete assembly process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model discloses an integrated assembly device for a circuit breaker crank arm box, comprising: a frame, a guide rail on the top of the frame, a first bracket and a second bracket at both ends of the frame, a first locking and lifting device on the top of the first bracket, and a second locking and lifting device on the top of the second bracket; a flipping frame slidably mounted on the guide rail, the flipping frame including a sliding plate slidably connected to the guide rail, a flipping plate hinged to the sliding plate, a flipping plate slide rail on the flipping plate, a first clamping plate and a second clamping plate slidably mounted at both ends of the flipping plate slide rail; a cage-type bracket between the first bracket and the second bracket, a press fixedly mounted inside the cage-type bracket, and a plurality of bolt fastening devices arranged around the outside of the press.

[0006] Optionally, the first locking and lifting device includes: a first gripper main slide rail, the bottom of which is connected to the top of the first bracket, and a first gripper secondary slide rail slidably disposed on the first gripper main slide rail; a first sliding block is slidably disposed on the first gripper secondary slide rail; the second locking and lifting device includes: a second gripper main slide rail, the bottom of which is connected to the top of the second bracket, and a second gripper secondary slide rail slidably disposed on the second gripper main slide rail; a second sliding block is slidably disposed on the second gripper secondary slide rail; and gripper assemblies are disposed on both the first and second sliding blocks.

[0007] Optionally, the major axis of the first gripper main slide rail is parallel to the major axis of the guide rail, and the major axis of the first gripper secondary slide rail is perpendicular to the major axis of the first gripper main slide rail; the major axis of the second gripper main slide rail is parallel to the major axis of the guide rail, and the major axis of the second gripper secondary slide rail is perpendicular to the major axis of the second gripper main slide rail.

[0008] Optionally, the gripper assembly includes a ball screw shaft with threads. The ball screw shaft is threadedly connected to a fixing frame. A plate-shaped inner jaw is connected to the bottom edge of the fixing frame. The plate-shaped inner jaw includes an inner jaw connecting rod. One end of the inner jaw connecting rod is connected to the fixing frame, and the other end is hinged to an inner jaw body. A connecting rod is hinged to the upper part of the inner jaw body, and the other end of the connecting rod is hinged to the bottom of the ball screw shaft.

[0009] Optionally, the plate-shaped inner claws are equidistantly distributed circumferentially at the bottom of the fixing frame.

[0010] Optionally, the bottom of the cage-type support is fixed to the frame by four support rods, and the length of each of the four support rods is greater than the major axis length of the crank arm box.

[0011] Optionally, the bolt fastening device is a rotating sleeve.

[0012] Optionally, the bolt fastening devices are circumferentially and evenly distributed on the outside of the press.

[0013] Optionally, the guide rail includes two parallel tracks, and the sliding plate has two grooves on both sides, and the sliding plate is slidably engaged with the guide rail.

[0014] Optionally, the first card plate and the second card plate are arranged opposite to each other, and the opposite ends of the first card plate and the second card plate are matched with the outer surface of the crank arm box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention enables the integrated assembly of high-voltage circuit breaker crank arm boxes, completing the assembly of the crank arm box from various parts to components, and realizing a complete assembly process. Compared with the traditional operation mode of manual handling, flipping, manual pressing, and manual torque tightening of bolts, it saves time and labor, improves the safety and reliability of operation, and also improves the assembly efficiency of the product.

[0016] This utility model fully considers the characteristics of the crank arm box and uses a flipping frame to move it, so that it can be flipped after one side is assembled, thus meeting the multi-hole installation requirements of the crank arm box.

[0017] Furthermore, the bolt fastening device of this utility model is evenly distributed around the outside of the press in a circumferential direction, which can meet the bolt fastening requirements of different models of crank arm box mounting hole spacing. Attached Figure Description

[0018] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the plate-shaped inner claw in an embodiment of the present invention; Figure 3 This is a schematic diagram of the flipping frame according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the press according to an embodiment of the present invention; The components include: 1. Frame; 101. Ball screw shaft; 103. Plate-shaped inner jaw; 2. Guide rail; 3. First locking and lifting device; 301. First bracket; 31. First jaw main slide rail; 32. First jaw secondary slide rail; 33. First sliding block; 601. Second bracket; 61. Second jaw main slide rail; 62. Second jaw secondary slide rail; 63. Second sliding block; 4. Crank arm box; 5. Press; 6. Second locking and lifting device; 7. Bolt fastening device; 8. Cage bracket; 9. Tilting frame; 91. Sliding plate; 92. Tilting plate; 93. Tilting plate slide rail; 101. Ball screw shaft; 102. Fixed frame; 103. Plate-shaped inner jaw; 1031. Inner jaw connecting rod; 1032. Inner jaw body; 1033. Connecting rod; 14. First clamping plate; 15. Second clamping plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] When an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments. The use of the term "horizontal" does not imply that the component is required to be absolutely horizontal, but rather that it may be slightly tilted. "Horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] This utility model discloses an integrated assembly device for a circuit breaker crank arm box, comprising: a frame 1, a guide rail 2 on the top of the frame 1, a first bracket 301 and a second bracket 601 respectively at both ends of the frame 1, a first locking and lifting device 3 on the top of the first bracket 301, and a second locking and lifting device 6 on the top of the second bracket 601; a flipping frame 9 is slidably mounted on the guide rail 2, the flipping frame 9 includes a sliding plate 91 slidably connected to the guide rail 2, a flipping plate 92 is hinged to the sliding plate 91, a flipping plate slide rail 93 is provided on the flipping plate 92, and a first clamping plate 14 and a second clamping plate 15 are slidably mounted at both ends of the flipping plate slide rail 93; a cage-type bracket 8 is provided between the first bracket 301 and the second bracket 601, a press 5 is fixedly installed inside the cage-type bracket 8, and a plurality of bolt fastening devices 7 are arranged around the outside of the press 5.

[0027] This invention enables the integrated assembly of high-voltage circuit breaker crank arm boxes, completing the assembly of crank arm box 4 from various parts into components, and realizing a complete assembly process. Compared with the traditional operation mode of manual handling, flipping, manual pressing, and manual torque tightening of bolts, it saves time and labor, improves the safety and reliability of operation, and also improves the assembly efficiency of the product.

[0028] Example 1 The circuit breaker crank arm box integrated assembly device includes a frame 1, which is a truss structure welded from steel profiles. The frame 1 is fixed on a flat ground. A guide rail 2 is provided on the top of the frame 1.

[0029] The frame 1 is provided with a first support 301 and a second support 601 at both ends.

[0030] The bottom of the first bracket 301 is connected to the top of the frame 1. A first locking and lifting device 3 is provided on the top of the first bracket 301. The first locking and lifting device 3 includes: a first gripper main slide rail 31, the bottom of which is connected to the top of the first bracket 301. The major axis of the first gripper main slide rail 31 is parallel to the major axis of the guide rail 2. A first gripper secondary slide rail 32 is slidably mounted on the first gripper main slide rail 31. The major axis of the first gripper secondary slide rail 32 is perpendicular to the major axis of the first gripper main slide rail 31. A first sliding block 33 is slidably mounted on the first gripper secondary slide rail 32.

[0031] The bottom of the second bracket 601 is connected to the top of the frame 1. A second locking and lifting device 6 is provided on the top of the second bracket 601. The second locking and lifting device 6 includes a second gripper main slide rail 61, the bottom of which is connected to the top of the second bracket 601. The major axis of the second gripper main slide rail 61 is parallel to the major axis of the guide rail 2. A second gripper secondary slide rail 62 is slidably mounted on the second gripper main slide rail 61. The major axis of the second gripper secondary slide rail 62 is perpendicular to the major axis of the second gripper main slide rail 61. A second sliding block 63 is slidably mounted on the second gripper secondary slide rail 62.

[0032] Both the first sliding block 33 and the second sliding block 63 are provided with gripper assemblies. The gripper assembly includes a ball screw shaft 101 with threads. The ball screw shaft 101 is threaded to a fixing frame 102. The bottom edge of the fixing frame 102 is connected to three plate-shaped inner claws 103. The plate-shaped inner claws 103 include inner claw connecting rods 1031. One end of the inner claw connecting rod 1031 is connected to the fixing frame 102, and the other end is hinged to an inner claw body 1032. The upper part of the inner claw body 1032 is hinged to a connecting rod 1033, and the other end of the connecting rod 1033 is hinged to the bottom of the ball screw shaft 101.

[0033] Optionally, the guide rail 2 includes two parallel tracks, and the sliding plate 91 has two grooves on both sides, and the sliding plate 91 is slidably engaged with the guide rail 2.

[0034] Optionally, both the first sliding block 33 and the second sliding block 63 have through holes, and the ball screw shaft 101 is respectively movably disposed in the through holes of the first sliding block 33 and the second sliding block 63.

[0035] Optionally, the fixing frame 102 is a circular plate, and three plate-shaped inner claws 103 are equidistantly distributed in a circumferential direction at the bottom of the fixing frame 102.

[0036] A flipping frame 9 is slidably mounted on the guide rail 2. The flipping frame 9 includes a sliding plate 91, which is slidably connected to the guide rail 2. A flipping plate 92 is hinged to one end of the sliding plate 91. A flipping plate slide rail 93 is provided on the flipping plate 92. A first locking plate 14 and a second locking plate 15 are slidably arranged at both ends of the flipping plate slide rail 93. The first locking plate 14 and the second locking plate 15 are arranged opposite to each other, and the opposite ends of the first locking plate 14 and the second locking plate 15 are matched with the outer surface of the crank arm box 4.

[0037] Specifically, the guide rail 2 includes two parallel tracks for moving the tilting frame 8 that carries the crank arm box 4. Optionally, the sliding plate 91 has two grooves on both sides, and the sliding plate 91 is slidably engaged with the guide rail 2.

[0038] A cage-type support 8 is provided between the first support 301 and the second support 601. The cage-type support 8 is a box-shaped support structure. A press 5 is fixedly installed inside the cage-type support 8. Several bolt fastening devices 7 are arranged around the outside of the press 5. The bottom of the cage-type support 8 is fixed to the frame 1 by four support rods, and the length of each of the four support rods is greater than the major axis length of the crank arm box 4.

[0039] The press 5 is installed at the center of the cage bracket 8. There are six bolt fastening devices 7. Specifically, the bolt fastening devices 7 are rotating sleeves. The six bolt fastening devices 7 are evenly distributed around the outside of the press 5. The six rotating sleeves can meet the bolt installation and fastening requirements of three different diameters and different models of crank arm box 4 with different hole spacing.

[0040] Example 2 The present invention discloses an integrated assembly device for a circuit breaker crank arm box, which includes the following steps in use: Move the ball screw shaft 101 of the first locking and lifting device 3 downward so that the plate-shaped inner claw 103 of the first locking and lifting device 3 is placed into the inner crank arm cavity of the crank arm box 4. Rotate the ball screw shaft 12 of the first locking and lifting device 3, and the fixing frame 11 moves downward, causing the plate-shaped inner claw 10 to expand outward, tightening the inner crank arm cavity of the crank arm box 4 to clamp it.

[0041] Move the ball screw shaft 101 of the first locking and lifting device 3 upward, and move the crank arm box 4 to the tilting frame 9 through the first gripper main slide rail 31 and the first gripper secondary slide rail 32, and release the crank arm box 4.

[0042] The crank arm box 4 is clamped by the first clamping plate 14 and the second clamping plate 15 of the flipping frame 9, and the crank arm box 4 is slid to the bottom of the cage bracket 8 by the sliding plate 91.

[0043] The seal, spring stack, and cover plate are installed into the crank arm box 4 using the press 5. The bolts of the crank arm box 4 are subjected to torque by the bolt fastening device 7. The crank arm box 4 is flipped by the flipping plate 92 so that the insulating gas valve of the crank arm box 4 faces upward, and the insulating gas valve is installed.

[0044] Operate the bolt fastening device 7 to tighten the bolts diagonally to apply torque, then move the crank arm box 4 to the assembly station, flip it so that the insulating gas valve faces upwards, and then install the insulating gas valve.

[0045] The crank arm box 4 is flipped back to its initial state by the flip plate 92 and moved below the second locking lifting device 6 to release the first clamping plate 14 and the second clamping plate 15.

[0046] Place the plate-shaped inner claw 103 of the second locking and lifting device 6 into the inner crank arm cavity of the crank arm box 4, tighten the inner crank arm cavity of the crank arm box 4, clamp it, and move it horizontally to the logistics vehicle next to the frame 1. Release the plate-shaped inner claw 103 to complete the assembly.

[0047] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An integrated assembly device for a circuit breaker crank arm box, characterized in that, include: A frame (1) is provided with a guide rail (2) at the top of the frame (1). A first bracket (301) and a second bracket (601) are provided at both ends of the frame (1). A first locking lifting device (3) is provided at the top of the first bracket (301), and a second locking lifting device (6) is provided at the top of the second bracket (601). A flipping frame (9) is slidably installed on the guide rail (2). The flipping frame (9) includes a sliding plate (91) slidably connected to the guide rail (2). A flipping plate (92) is hinged on the sliding plate (91). A flipping plate slide rail (93) is provided on the flipping plate (92). A first clamping plate (14) and a second clamping plate (15) are slidably provided at both ends of the flipping plate slide rail (93). A cage-type bracket (8) is provided between the first bracket (301) and the second bracket (601). A press (5) is fixedly installed inside the cage-type bracket (8). Several bolt fastening devices (7) are arranged around the outside of the press (5).

2. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, The first locking and lifting device (3) includes: a first gripper main slide rail (31), the bottom of which is connected to the top of the first bracket (301), and a first gripper secondary slide rail (32) is slidably arranged on the first gripper main slide rail (31); a first sliding block (33) is slidably arranged on the first gripper secondary slide rail (32); the second locking and lifting device (6) includes: a second gripper main slide rail (61), the bottom of which is connected to the top of the second bracket (601), and a second gripper secondary slide rail (62) is slidably arranged on the second gripper main slide rail (61); a second sliding block (63) is slidably arranged on the second gripper secondary slide rail (62); and gripper assemblies are provided on both the first sliding block (33) and the second sliding block (63).

3. The integrated assembly device for a circuit breaker crank arm box according to claim 2, characterized in that, The major axis of the first gripper main slide rail (31) is parallel to the major axis of the guide rail (2), and the major axis of the first gripper secondary slide rail (32) is perpendicular to the major axis of the first gripper main slide rail (31); the major axis of the second gripper main slide rail (61) is parallel to the major axis of the guide rail (2), and the major axis of the second gripper secondary slide rail (62) is perpendicular to the major axis of the second gripper main slide rail (61).

4. The integrated assembly device for a circuit breaker crank arm box according to claim 3, characterized in that, The gripper assembly includes a ball screw shaft (101) with threads. The ball screw shaft (101) is connected to a fixed frame (102) via the threads. The bottom edge of the fixed frame (102) is connected to a plate-shaped inner jaw (103). The plate-shaped inner jaw (103) includes an inner jaw connecting rod (1031). One end of the inner jaw connecting rod (1031) is connected to the fixed frame (102), and the other end is hinged to an inner jaw body (1032). A connecting rod (1033) is hinged to the upper part of the inner jaw body (1032), and the other end of the connecting rod (1033) is hinged to the bottom of the ball screw shaft (101).

5. The integrated assembly device for a circuit breaker crank arm box according to claim 4, characterized in that, Plate-shaped inner claws (103) are equidistantly distributed in a circumferential direction at the bottom of the fixing frame (102).

6. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, The bottom of the cage-type support (8) is fixed to the frame (1) by four support rods, and the length of the four support rods is greater than the long axis length of the crank arm box (4).

7. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, The bolt fastening device (7) is a rotating sleeve.

8. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, Bolt fastening devices (7) are evenly distributed around the outside of the press (5).

9. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, The guide rail (2) includes two parallel tracks. The sliding plate (91) has two grooves on both sides and is slidably engaged with the guide rail (2).

10. The integrated assembly device for a circuit breaker crank arm box according to claim 1, characterized in that, The first card plate (14) and the second card plate (15) are arranged opposite to each other, and the opposite ends of the first card plate (14) and the second card plate (15) are matched with the outer surface of the crank arm box (4).

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