Three-phase common-tank high-voltage switch assembly device

Abstract

This invention relates to the technical field of specialized equipment for assembling switchgear, specifically to an assembly device for a three-phase common-enclosure high-voltage switchgear. The assembly device includes a support frame with module support components corresponding to the respective moving-end assembly modules of the three-phase common-enclosure high-voltage switchgear. Each module support component includes a guide rail with a module mounting seat slidably mounted on it. The module mounting seat has a transition connector for fixing to the flange of the corresponding moving-end assembly module. The transition connector is rotatably mounted on the module mounting seat. The module mounting seat has a lifting mechanism for raising and lowering the transition connector. This allows the horizontal movement, rotation, and lifting movements of the moving-end assembly modules to coordinate, thereby facilitating and quickly assembling the three-phase moving-end assembly modules into the housing and phase-to-phase insulation transmission rods, significantly reducing labor intensity and improving assembly efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of specialized equipment for assembling switchgear, and specifically to an assembly device for a three-phase common-enclosure high-voltage switchgear. Background Technology

[0002] Currently, high-voltage switchgear is developing towards miniaturization. The miniaturized three-phase common-enclosure isolating grounding switch replaces the external four-bar linkage between phases with the internal insulating rod linkage between phases, resulting in a compact structure and excellent performance. For example, a three-phase common-box type three-position isolating grounding switch disclosed in Chinese invention patent application CN114512364A, published on May 17, 2022, includes a cylindrical housing. Inside the housing are installed stationary and moving contacts corresponding to each phase. The moving contacts are mounted on a supporting conductor, and a gear shaft connected to the moving contacts is provided on the supporting conductor. The moving contacts, the corresponding supporting conductor, and the gear shaft constitute a moving end assembly. The gear shafts of the moving end assemblies of adjacent phases are connected by an insulating transmission rod. The gear shaft of the moving end assembly of one phase on the side is connected to an operating mechanism via an insulating transmission rod. The operating mechanism can simultaneously drive the three-phase moving contacts to perform opening and closing actions via the insulating transmission rod. The housing has mounting holes for inserting each phase's moving end assembly and stationary end assembly into the housing. An insulating basin is provided at the mounting hole corresponding to the moving end assembly. The supporting conductor of the moving end assembly is fixed on the insulating basin. Flanges for interconnection are provided on the insulating basin and at the opening of the mounting hole.

[0003] Because the housing of a three-phase common-enclosure isolating grounding switch is a three-phase integrated casting structure with limited internal space, the insulating basin and moving end assembly are usually assembled outside the cylinder to form a moving end assembly module, which is then assembled into the housing as a whole. However, the moving end assembly module is relatively large, while the mounting holes are small, often making it impossible to directly install it into the housing. Conventional hoisting methods are inconvenient for workers, resulting in high labor intensity. Furthermore, after the moving end assembly module is installed into the housing, space constraints make it inconvenient to install interphase insulating transmission rods between two moving end assembly modules, leading to low assembly efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a three-phase common-enclosure high-voltage switch assembly device to solve the problem of low assembly efficiency of current three-phase common-enclosure high-voltage switches.

[0005] The technical solution of the three-phase common-enclosure high-voltage switch assembly device of the present invention is as follows:

[0006] A three-phase common-enclosure high-voltage switch assembly device includes a support frame, on which are provided module support components corresponding to each moving end assembly module of the three-phase common-enclosure high-voltage switch. Each module support component includes a guide rail, on which a module mounting seat is slidably mounted. The module mounting seat is provided with a transition connector for fixing to the flange of the corresponding moving end assembly module. The transition connector is rotatably mounted on the module mounting seat. The module mounting seat is provided with a lifting mechanism for driving the transition connector to rise and fall.

[0007] Beneficial effects: Utilizing the three-phase common-enclosure high-voltage switch assembly device of this invention, when installing the moving-end assembly module into the housing, the moving-end assembly module can first be fixed to the transition connector. The moving-end assembly module can then be adjusted to a suitable angle via the rotatable transition connector. The position of the moving-end assembly module can be adjusted via the slidable module mounting base, allowing it to enter the housing of the three-phase common-enclosure high-voltage switch. The lifting mechanism can drive the moving-end assembly module to rise and fall, adjusting the distance between different moving-end assembly modules, thereby providing sufficient installation space for the phase-to-phase insulation transmission rod. This allows the horizontal movement, rotation, and lifting movements of the moving-end assembly module to be coordinated, facilitating and quickly assembling the three-phase moving-end assembly module into the housing and the phase-to-phase insulation transmission rod, significantly reducing labor intensity and improving assembly efficiency.

[0008] Furthermore, the guide rail includes a first horizontal guide rail and a second horizontal guide rail that are perpendicular to each other. A slider is provided on the first horizontal guide rail, and the second horizontal guide rail is fixed on the slider. The module mounting base is slidably disposed on the second horizontal guide rail.

[0009] Beneficial effects: The first and second horizontal guide rails, which are perpendicular to each other, can be used to adjust the moving end assembly module in the front and back and left and right on the horizontal plane, so that the positions of different moving end assembly modules can correspond.

[0010] Furthermore, the second horizontal guide rail is provided with a first horizontal guide rail at each end.

[0011] Beneficial effect: The second horizontal guide rail is supported by the first horizontal guide rail at both ends, which is beneficial to the stability of the structure.

[0012] Furthermore, the slider is provided with a sliding locking component, which is used to fix the slider to the first horizontal guide rail when the slider slides to the set position.

[0013] Beneficial effect: It can position the second horizontal guide rail, which helps to ensure the position of the moving end assembly module.

[0014] Furthermore, the lifting mechanism is a screw jack.

[0015] Beneficial effects: Using a screw jack to lift the moving end assembly module facilitates control and saves costs.

[0016] Furthermore, the housing of the screw jack is rotatably mounted on the base of the module mounting seat, and the screw of the screw jack is fixed to the transition connector.

[0017] Beneficial effects: It allows the screw jack to be rotatably set, which helps to ensure the stability of the rotating installation structure.

[0018] Furthermore, the housing of the screw jack is provided with a rotary locking element for fixing it to the base of the module mounting seat.

[0019] Beneficial effects: It can position the rotation of the screw jack, which helps to ensure the position of the moving end assembly module.

[0020] Furthermore, the housing of the screw jack is rotatably mounted on the base of the module mounting seat via crossed roller bearings.

[0021] Beneficial effects: High precision, which is beneficial for adjusting the angle of the moving end assembly module.

[0022] Furthermore, the supporting components for each module are arranged in layers, one above the other.

[0023] Beneficial effects: Reduces the footprint and facilitates stable support for the moving end assembly module.

[0024] Furthermore, the support frame is equipped with a housing mounting base, which is used to fit and fix the housing of the three-phase common-enclosure high-voltage switch.

[0025] Beneficial effects: It facilitates the adjustment of the relative position of the moving end assembly module and the housing of the three-phase common-enclosure high-voltage switch, making assembly operations easier. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the three-phase common-enclosure high-voltage switch assembly device of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the three-phase common-enclosure high-voltage switch assembly device of the present invention in use in Embodiment 1;

[0028] Figure 3 This is a diagram illustrating the assembly process of the moving end assembly module being installed into the housing in Embodiment 1 of the three-phase common-enclosure high-voltage switch assembly device of the present invention.

[0029] Figure 4 This is a diagram illustrating the assembly process of the insulating transmission rod in Embodiment 1 of the three-phase common-box high-voltage switch assembly device of the present invention.

[0030] In the diagram: 1. Bearing frame; 2. Housing mounting base; 3. Transition connector; 4. Screw jack; 5. Slide; 6. First horizontal guide rail; 7. Second horizontal guide rail; 10. Insulating basin; 11. Support conductor; 12. Housing; 13. Moving contact; 14. Gear shaft; 15. Insulating transmission rod. Detailed Implementation

[0031] Embodiment 1 of the three-phase common-enclosure high-voltage switch assembly device of the present invention:

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the three-phase common-enclosure high-voltage switch assembly device includes a support frame 1. The support frame 1 includes two bottom beams arranged in parallel. A support beam is fixed across the two bottom beams. A housing mounting seat 2 is provided on the support beam. The housing mounting seat 2 is a flange, which is used to fit and fix the housing 12 of the three-phase common-enclosure high-voltage switch. After the housing 12 is fixed to the support frame 1, the mounting holes for the three power supply end assembly modules of the housing 12 are arranged vertically.

[0033] The support frame 1 also includes two support frames fixed to the two bottom beams. Each support frame includes two columns and two crossbeams between the columns. The crossbeams are arranged parallel to the bottom beams. The crossbeams on the two support frames are parallel and correspond one-to-one to form a pair of crossbeams with the same height. The support frame 1 is equipped with three module support components corresponding to the three moving end assembly modules of the three-phase common-box high-voltage switch. The three module support components are respectively installed on a pair of bottom beams and two pairs of crossbeams. The module support components are arranged in layers, with each module support component supporting one moving end assembly module.

[0034] The modular support assembly includes guide rails, specifically a first horizontal guide rail 6 and a second horizontal guide rail 7 that are perpendicular to each other. The first horizontal guide rail 6 extends in the front-to-back direction, and the second horizontal guide rail 7 extends in the left-to-right direction. A slider is mounted on the first horizontal guide rail 6, and the second horizontal guide rail 7 is fixed to the slider. The first horizontal guide rail 6 is mounted at both ends of the second horizontal guide rail 7, thus supporting the second horizontal guide rail 7 and improving structural stability. The first horizontal guide rails 6 of the upper two modular support assemblies are mounted on corresponding crossbeams, while the first horizontal guide rails 6 of the lowermost modular support assembly are mounted on the bottom beam.

[0035] A module mounting base is provided on the second horizontal guide rail 7. The module mounting base includes a slide 5 and a screw jack 4. The slide 5 is slidably mounted on the second horizontal guide rail 7. The slide 5 forms the base of the module mounting base. The housing of the screw jack 4 is rotatably mounted on the slide 5. A transition connector 3 is fixed to the top of the screw of the screw jack 4. The transition connector 3 includes a transition connecting plate for fitting and fixing to the flange of the insulating basin 10 of the moving end assembly module. The housing of the screw jack 4 is rotatably mounted on the base of the module mounting base via crossed roller bearings. Through the mutually perpendicular first horizontal guide rail 6 and second horizontal guide rail 7, the moving end assembly module can be adjusted forward and backward and left and right on the horizontal plane, making it easy to make the positions of different moving end assembly modules correspond. The screw jack 4 can drive the moving end assembly module to move up and down, which is convenient for control and saves costs. By rotating the screw jack 4, the moving end assembly module can be rotated 360°, which can adjust the angle of the moving end assembly module of the three-phase common-box high-voltage switch relative to the housing 12.

[0036] Locking bolts are provided on the housing, slide 5, and slider of the screw jack 4. These locking bolts are rotary locking components. When the slider slides to the set position, the corresponding locking bolts are tightened to press it against the first horizontal guide rail 6, thereby fixing the slider to the first horizontal guide rail 6 and locking the position of the second horizontal guide rail 7. When the slide 5 slides to the set position, the corresponding locking bolts are tightened to press it against the second horizontal guide rail 7, thereby fixing the slide 5 to the second horizontal guide rail 7 and locking the position of the slide 5. After the screw jack 4 rotates to the set angle, the locking bolts on the housing of the screw jack 4 are tightened to press it against the slide 5, positioning the screw jack 4 and ensuring the position and orientation of the moving end assembly module.

[0037] When using, please assemble according to the following steps:

[0038] (1) Fix the housing 12 of the three-phase common box high voltage switch to the housing mounting base 2 of the support frame 1.

[0039] (2) One of the moving end assembly modules is hoisted to the lowest screw jack 4 and fixed to the flange of the insulating basin 10 of the moving end assembly module through the transition connector 3. The side of the flange of the insulating basin 10 facing away from the supporting conductor 11 is fixed to the transition connector 3.

[0040] (3) According to Figure 3The assembly process involves adjusting the position of the moving end assembly module, installing it into the housing 12, and ensuring that the flange of the insulating basin 10 of the moving end assembly module is coaxial with the flange at the corresponding mounting hole on the housing 12. The specific adjustment and assembly process of the moving end assembly module is as follows: First, the moving end assembly module is rotated by rotating the screw jack 4, thereby adjusting the angle between the central axis of the insulating basin 10 of the moving end assembly module and the flange end face at the corresponding mounting hole to 30°–35°. Figure 3 With the midpoint angle P value between 30° and 35°, fix the screw jack 4 to prevent rotation; then move the moving end assembly module left and right to ensure that the distance between the rightmost end of the moving end assembly module and the wall of the corresponding mounting hole is 10mm to 15mm, that is... Figure 3 With an L value of 10mm to 15mm, push the moving end assembly module forward into the housing 12. After the moving end assembly module moves forward to the set position, release the screw jack 4, rotate and move the moving end assembly module until the support conductor 11 of the moving end assembly module is fully inserted into the housing 12 and the flange of the insulating basin 10 of the moving end assembly module is coaxial with the corresponding flange on the housing 12. Make the flange end face of the insulating basin 10 50mm away from the end face of the corresponding flange on the housing 12. Then, install the remaining two moving end assembly modules into the housing 12 in sequence.

[0041] (4) Fix the slider, slide block 5 and screw jack 4 to prevent the slider, slide block 5 from moving and the screw jack 4 from rotating.

[0042] (5) According to Figure 4 Following the assembly process, adjust the height of the moving end assembly module and assemble the phase-to-phase insulating transmission rods 15 into the qualified positions in sequence. Figure 4In the figure, a is 10mm, b is 30mm, and c is 50mm. Specifically, the adjustment process of the moving end assembly module and the assembly process of the insulating transmission rod 15 are as follows: The flange end face of the insulating basin 10 is 50mm away from the end face of the corresponding flange on the housing 12, i.e., the distance is c. Due to spatial constraints, in order to prevent interference between the moving end assembly module and the inner wall of the housing 12 and to facilitate the assembly of the insulating transmission rod 15, the handwheel on the screw jack 4 is first turned to lower the lowermost moving end assembly module by 10mm. This means that the height of the supporting conductor 11 of the moving end assembly module and the moving contact 13 and gear shaft 14 on the supporting conductor 11 relative to their qualified positions is 10mm lower. This makes the central axis of the insulating basin 10 of the lowermost moving end assembly module lower than the central axis of the mounting hole on the corresponding housing 12 by a value a. The middle moving end assembly module is raised by 30mm, and the central axis of the insulating basin 10 of the middle moving end assembly module is higher than the central axis of the mounting hole on the corresponding housing 12 by a value b. The corresponding insulating transmission rod 15 is then assembled onto the two moving end assembly modules. Between the gear shafts 14; then, crank the screw jack 4 to lower the height of the middle moving end assembly module by 10mm from its qualified position, so that the central axis of the insulating basin 10 of the middle moving end assembly module is lower than the central axis of the mounting hole on the corresponding housing 12 by a value a, and the uppermost moving end assembly module is raised by 30mm, so that the central axis of the insulating basin 10 of the uppermost moving end assembly module is higher than the central axis of the mounting hole on the corresponding housing 12 by a value b, and the corresponding insulating transmission rod 15 is assembled between the two moving end assembly modules. When assembling the insulating transmission rod 15, the openings at other positions on the housing 12 can be used; then crank the screw jack 4 to first lower the uppermost moving end assembly module to the qualified height, so that the flange of the moving end assembly module is coaxial with the corresponding flange on the housing 12, and then raise the middle moving end assembly module and the left moving end assembly module by 10mm in sequence, so as to ensure that the flanges of the other two moving end assembly modules are coaxial with the corresponding flanges on the housing 12, and complete the assembly of the moving end assembly module and the insulating transmission rod 15.

[0043] (6) Move the three-phase moving end assembly module so that the flange of the insulating basin 10 of the moving end assembly module is connected to the corresponding flange on the shell 12, and then fix the moving end assembly module to the cylinder to complete the assembly.

[0044] This allows the three-phase moving end assembly module to move back and forth, left and right, rotate 360°, and be raised and lowered, thus facilitating and quickly assembling the three-phase moving end assembly module into the housing and the phase-to-phase insulating transmission rod, greatly reducing labor intensity and improving assembly efficiency.

[0045] Embodiment 2 of the three-phase common-enclosure high-voltage switch assembly device of the present invention:

[0046] The difference between this embodiment and Embodiment 1 is that the guide rail in Embodiment 1 includes a first horizontal guide rail and a second horizontal guide rail that are perpendicular to each other. In this embodiment, the guide rail extends forward and backward.

[0047] Embodiment 3 of the three-phase common-enclosure high-voltage switch assembly device of the present invention:

[0048] The difference between this embodiment and Embodiment 1 is that the lifting mechanism in Embodiment 1 is a hand-cranked screw jack, while in this embodiment, the lifting mechanism is an electric push rod.

[0049] Embodiment 4 of the three-phase common-enclosure high-voltage switch assembly device of the present invention:

[0050] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the housing of the screw jack is rotatably mounted on the base of the module mounting seat, and the screw of the screw jack is fixed to the transition connector. In this embodiment, the housing of the screw jack is fixedly mounted on the base of the module mounting seat, the top of the screw of the screw jack is provided with a rotating mounting seat, and the transition connector is rotatably mounted on the rotating mounting seat.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-phase common-enclosure high-voltage switch assembly device, characterized in that, The system includes a support frame, on which are mounted module support components corresponding to the moving-end assembly modules of the three-phase common-enclosure high-voltage switch. These support components are arranged in vertical layers. Each module support component includes a guide rail, on which a module mounting seat is slidably mounted. The guide rail includes a first horizontal guide rail and a second horizontal guide rail that are perpendicular to each other. A slider is mounted on the first horizontal guide rail, and the second horizontal guide rail is fixed to the slider. The module mounting seat is slidably mounted on the second horizontal guide rail. The module mounting seat has a transition connector for fixing to the flange of the corresponding moving-end assembly module. The transition connector is rotatably mounted on the module mounting seat. The module mounting seat has a lifting mechanism for raising and lowering the transition connector. The support frame also has a housing mounting seat for fitting and fixing to the housing of the three-phase common-enclosure high-voltage switch. After the housing is fixed to the support frame, the three mounting holes for the moving-end assembly modules are arranged vertically. The lifting mechanism raises the upper one and lowers the lower one of two adjacent moving-end assembly modules to assemble the phase-to-phase insulation transmission rod of the three-phase common-enclosure high-voltage switch between the two adjacent moving-end assembly modules.

2. The three-phase common-enclosure high-voltage switch assembly device according to claim 1, characterized in that, The first horizontal guide rail is provided at both ends of the second horizontal guide rail.

3. The three-phase common-enclosure high-voltage switch assembly device according to claim 2, characterized in that, The slider is equipped with a sliding locking component, which is used to fix the slider to the first horizontal guide rail when the slider slides to the set position.

4. The three-phase common-enclosure high-voltage switch assembly device according to any one of claims 1-3, characterized in that, The lifting mechanism is a screw jack.

5. The three-phase common-enclosure high-voltage switch assembly device according to claim 4, characterized in that, The housing of the screw jack is rotatably mounted on the base of the module mounting seat, and the screw of the screw jack is fixed to the transition connector.

6. The three-phase common-enclosure high-voltage switch assembly device according to claim 5, characterized in that, The housing of the screw jack is equipped with a rotary locking element for fixing it to the base of the module mounting seat.

7. The three-phase common-enclosure high-voltage switch assembly device according to claim 5, characterized in that, The housing of the screw jack is rotatably mounted on the base of the modular mounting seat via crossed roller bearings.

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