Basin-type insulator rotary overhaul frame for GIS (gas insulated switchgear)

Abstract

The invention discloses a GIS basin-type insulator rotary overhaul frame, which comprises a movable underframe and a support frame, a gear motor is fixedly mounted on the rear side of the upper top end of the support frame, a first transmission chain wheel is fixedly mounted on a transmission shaft part at the side end of the gear motor, and the outer end of the first transmission chain wheel is in meshed connection with a first transmission chain; the inner side, away from the first transmission chain wheel, of the first transmission chain is in meshed connection with a second transmission chain wheel, a transmission shaft column is fixedly installed in the middle of the second transmission chain wheel, third transmission chain wheels are fixedly installed on the outer curved surfaces of the two ends of the transmission shaft column, and the upper ends of the third transmission chain wheels are in meshed connection with a second transmission chain. An L-shaped lifting frame is fixedly installed at the head end of the second transmission chain, and vertical limiting sliding rails are fixedly installed on the two sides of the front end of the supporting frame. While the basin-type insulator is maintained, the maintenance position of the basin-type insulator can be adjusted through up-down linear movement.

Description

Technical Field

[0001] The invention relates to the technical field of gas insulated switchgear, in particular to a pot-type insulator rotary maintenance frame for GIS. Background Art

[0002] Gas insulated switchgear (GIS for short) refers to equipment composed of power components such as circuit breakers, disconnectors, grounding switches, current transformers, voltage transformers, lightning arresters, busbars, connectors and outgoing terminals. These devices or components are all enclosed in a metal grounded casing and filled with SF6 insulating gas at a certain pressure. Therefore, it is also called SF6 fully enclosed combination electrical equipment.

[0003] The main functions of gas-insulated switchgear include: Gas container: GIS equipment is a closed system filled with SF6 gas as an insulating and arc-extinguishing medium. Safety protection: GIS equipment achieves safe control and protection of the power system through its internal components such as circuit breakers, disconnectors and grounding switches. Heat dissipation: GIS equipment will generate heat during operation. Through its structural design and heat dissipation system, it ensures that the equipment operates within the normal temperature range. Mechanical support: The casing and internal components of GIS equipment provide the necessary mechanical support for the power system. Grounding electrode: GIS equipment has a grounding function to ensure the safe operation of the power system.

[0004] However, in actual use of the existing technology, gas insulated switchgear (GIS) is an important component of the power system, with the advantages of compact structure, small footprint, and high operational reliability. As a key component in GIS, the performance of the basin insulator directly affects the insulation strength and operational safety of GIS. However, in the actual operation and maintenance process, the maintenance of the basin insulator often faces the problem of limited space and high maintenance position, which makes it difficult to operate. Summary of the invention

[0005] The purpose of the present invention is to provide a GIS pot insulator rotary maintenance frame to solve the problem mentioned in the background technology that gas insulated switchgear (GIS) is an important component of the power system, and has the advantages of compact structure, small footprint, high operational reliability, etc. The pot insulator is a key component in GIS, and its performance directly affects the insulation strength and operational safety of GIS. However, in the actual operation and maintenance process, the maintenance of pot insulators often faces the problem of limited space and high maintenance position, which makes it difficult to operate.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a mobile base frame and a support frame, a reduction motor is fixedly installed on the rear side of the top end of the support frame, a first transmission sprocket is fixedly installed on the transmission shaft part of the side end of the reduction motor, the outer end of the first transmission sprocket is meshed and connected with a first transmission chain, the first transmission chain is meshed and connected with a second transmission sprocket away from the inner side of the first transmission sprocket, a transmission shaft column is fixedly installed in the middle of the second transmission sprocket, a third transmission sprocket is fixedly installed on the outer curved surfaces at both ends of the transmission shaft column, the upper end of the third transmission sprocket is meshed and connected with the second transmission chain, an L-shaped lifting frame is fixedly installed on the head end of the second transmission chain, vertical limiting slide rails are fixedly installed on both sides of the front end of the support frame, the outer end of the vertical limiting slide rail is limitedly fitted and movably connected with a vertical limiting slide seat, a counterweight frame is fixedly installed on the tail end of the second transmission chain, the upper and lower ends of the outer side of the counterweight frame are respectively supported and fixedly installed with limiting rollers, a limiting boss is fixedly installed on the inner wall of the middle part of the support frame, and a counterweight block for counterweighting and balancing the L-shaped lifting frame is placed inside the counterweight frame;

[0007] An inspection platform is fixedly installed on the outer side of the L-shaped lifting frame, and a driving motor is fixedly installed on the lower side end of the inspection platform, and a first driving pulley is fixedly installed on the transmission shaft part at the lower end of the driving motor, and the outer end of the first driving pulley is connected to the second driving pulley through a belt drive, and a rotating shaft column is fixedly installed in the middle of the second driving pulley, and a rotating platform is fixedly installed on the upper end of the rotating shaft column, and a supporting frame for supporting the pot-type insulator is fixedly installed on the upper end of the rotating platform, and support plates are fixedly installed on the front sides of the upper and lower ends of the support frame respectively, and limited telescopic rods are fixedly installed on the inner sides of both ends of the support plate, and a pressing plate is fixedly installed on the inner telescopic part of the limited telescopic rod, and a supporting spring is fixedly installed on the outer side of the pressing plate, and a limit pressing switch is fixedly installed on the inner side of the support frame, and limit plates are fixedly installed on the rear sides of the upper and lower ends of the L-shaped lifting frame.

[0008] Preferably, support rollers are fixedly mounted on the four corner supports of the lower end of the movable base frame, and there are four support rollers, which are symmetrically distributed at the four corners of the lower end of the movable base frame, and the support rollers are made of lockable universal wheels.

[0009] Preferably, the support frame is fixedly mounted on the rear side of the upper end of the mobile base frame, a power control cabinet is fixedly mounted on the rear side of the lower end of the support frame, and a mobile power supply is fixedly mounted inside the power control cabinet.

[0010] Preferably, the transmission shaft is rotatably connected to the front side of the top end of the support frame through a bearing seat support, and there are two third transmission sprockets, which are symmetrically distributed on the outer curved surfaces at both ends of the transmission shaft.

[0011] Preferably, there are two vertical limit slide rails, which are symmetrically distributed on both sides of the front end of the support frame, and the front end of the vertical limit slide seat is fixedly installed on both sides of the rear end of the L-shaped lifting frame.

[0012] Preferably, there are four limit rollers, and every two limit rollers form a group. The two groups of limit rollers are symmetrically distributed at the upper and lower ends of the outer side of the counterweight frame, and the limit rollers are connected to the inner side of the limit boss in a limit rolling manner.

[0013] Preferably, the rotating shaft column is rotatably connected to the middle part of the inspection platform through a rotating shaft, and a non-slip pad is bonded to the inner side of the supporting bracket.

[0014] Preferably, there are two support plates, which are symmetrically distributed on the front sides of the upper and lower ends of the support frame. The support spring is fixedly installed on the inner side of the support plate at one end away from the pressing plate. The limit press switch is electrically connected to the reduction motor through a wire, and the rear end of the limit plate is on the same vertical line as the pressing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the pot-type insulator is inspected and repaired, the driving motor is turned on by control. When the driving motor is turned on, the first driving pulley is driven to rotate. When the first driving pulley rotates, the second driving pulley is driven to rotate through belt transmission. When the second driving pulley rotates, the rotating shaft column is driven to rotate. When the rotating shaft column rotates, the rotating platform is driven to rotate. When the rotating platform rotates, the supporting bracket and the pot-type insulator supported by the supporting bracket are driven to rotate horizontally, so that the pot-type insulator is inspected and repaired, and the pot-type insulator is driven to rotate and adjust the inspection position;

[0017] 2. When the reduction motor of the present invention is turned on, it will drive the third transmission sprocket to rotate in sequence. When the third transmission sprocket rotates, it will engage and drive the second transmission chain to lift or lower. When the second transmission chain is lifted or lowered, it will drive the L-shaped lifting frame to move straight up and down. When the L-shaped lifting frame moves straight up and down, the second transmission chain will drive the counterweight frame to move straight up and down in the opposite direction. When the counterweight frame moves straight up and down, the counterweight block will be used to balance the L-shaped lifting frame. At the same time, when the L-shaped lifting frame moves straight up and down, it will synchronously drive the pot-type insulator supported by the supporting frame to move straight up and down, thereby realizing the maintenance of the pot-type insulator and facilitating the vertical linear movement to adjust the maintenance position of the pot-type insulator, thereby avoiding the situation where the maintenance position of the pot-type insulator is high and difficult to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The overall structure of a GIS pot-type insulator rotary maintenance frame of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of a GIS pot-type insulator rotary maintenance frame of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 The overall structure of a GIS pot-type insulator rotary maintenance frame of the present invention is shown in FIG. Figure 3 ;

[0021] Figure 4 The present invention is a partial structural schematic diagram of a rotary maintenance frame for pot-type insulators for GIS.

[0022] In the figure: 1. mobile base frame; 2. support frame; 3. support roller; 4. power control cabinet; 5. reduction motor; 6. first transmission sprocket; 7. first transmission chain; 8. second transmission sprocket; 9. transmission shaft column; 10. third transmission sprocket; 11. second transmission chain; 12. L-shaped lifting frame; 13. vertical limit slide rail; 14. vertical limit slide; 15. counterweight frame; 16. limit roller; 17. limit boss; 18. counterweight block; 19. maintenance table; 20. drive motor; 21. first transmission pulley; 22. second transmission pulley; 23. rotating shaft column; 24. rotating platform; 25. supporting frame; 26. support plate; 27. limit telescopic rod; 28. pressing plate; 29. ​​supporting spring; 30. limit pressing switch; 31. limit plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The present invention provides a technical solution: comprising a mobile base frame 1 and a support frame 2, wherein the four corners of the lower end of the mobile base frame 1 are supported and fixedly mounted with support rollers 3, and the number of the support rollers 3 is four, which are symmetrically distributed at the four corners of the lower end of the mobile base frame 1, and the support rollers 3 are made of lockable universal wheels, so that the mobile base frame 1 can be easily pushed and moved through the support rollers 3 while being locked and fixed;

[0025] The support frame 2 is fixedly mounted on the rear side of the upper end of the mobile base frame 1, a power control cabinet 4 is fixedly mounted on the rear side of the lower end of the support frame 2, and a mobile power supply is fixedly mounted inside the power control cabinet 4, a reduction motor 5 is fixedly mounted on the rear side of the top end of the support frame 2, a first transmission sprocket 6 is fixedly mounted on the transmission shaft part at the side end of the reduction motor 5, the outer end of the first transmission sprocket 6 is meshedly connected with a first transmission chain 7, the first transmission chain 7 is meshedly connected with a second transmission sprocket 8 away from the inner side of the first transmission sprocket 6, and the middle part of the second transmission sprocket 8 A transmission shaft column 9 is fixedly installed, and the transmission shaft column 9 is rotatably connected to the front side of the top end of the support frame 2 through a bearing seat support, and a third transmission sprocket 10 is fixedly installed on the outer curved surfaces at both ends of the transmission shaft column 9, and there are two third transmission sprockets 10, which are symmetrically distributed with the outer curved surfaces at both ends of the transmission shaft column 9, and the upper end of the third transmission sprocket 10 is meshed and connected with a second transmission chain 11, and an L-shaped lifting frame 12 is fixedly installed at the head end of the second transmission chain 11, and vertical limit slide rails 13 are fixedly installed on both sides of the front end of the support frame 2, and the vertical limit slide rails 13 are fixedly installed on both sides of the front end of the support frame 2. There are two straight limit rails 13, which are symmetrically distributed on both sides of the front end of the support frame 2. The outer ends of the vertical limit rails 13 are limited and fit movably connected with vertical limit slides 14, and the front ends of the vertical limit slides 14 are fixedly installed on both sides of the rear end of the L-shaped lifting frame 12, so that the vertical limit slides 14 cooperate with the vertical limit rails 13 to limit the vertical movement of the L-shaped lifting frame 12. A counterweight frame 15 is fixedly installed at the tail end of the second transmission chain 11, and the upper and lower ends of the outer sides of the counterweight frame 15 respectively support and fix the limit Rollers 16, and there are four limit rollers 16, each two limit rollers 16 form a group, and the two groups of limit rollers 16 are symmetrically distributed at the upper and lower ends of the outer side of the counterweight frame 15, respectively. A limit boss 17 is fixedly installed on the inner side wall of the middle part of the support frame 2, and the limit roller 16 is limited and rollingly connected to the inner side of the limit boss 17, so that the counterweight frame 15 is vertically moved and limited by the limit boss 17 and the limit roller 16, and a counterweight block 18 for counterweighting and balancing the L-shaped lifting frame 12 is placed inside the counterweight frame 15;

[0026] An inspection platform 19 is fixedly installed on the outside of the L-shaped lifting frame 12, a driving motor 20 is fixedly installed on the lower side of the inspection platform 19, a first driving pulley 21 is fixedly installed on the transmission shaft part of the lower end of the driving motor 20, the outer end of the first driving pulley 21 is connected to the second driving pulley 22 through a belt drive, a rotating shaft column 23 is fixedly installed in the middle of the second driving pulley 22, and the rotating shaft column 23 is rotatably connected to the middle of the inspection platform 19 through a rotating shaft, a rotating platform 24 is fixedly installed on the upper end of the rotating shaft column 23, a supporting bracket 25 for supporting the pot-type insulator is fixedly installed on the upper end of the rotating platform 24, and a non-slip cushion is bonded to the inner side of the supporting bracket 25;

[0027] Support plates 26 are fixedly installed on the front sides of the upper and lower ends of the support frame 2, and there are two support plates 26, which are symmetrically distributed on the front sides of the upper and lower ends of the support frame 2, and limited telescopic rods 27 are fixedly installed on the inner sides of both ends of the support plate 26, and a pressing plate 28 is fixedly installed on the telescopic part of the inner side of the limited telescopic rod 27, and a supporting spring 29 is fixedly installed on the outer side of the pressing plate 28, and the end of the supporting spring 29 away from the pressing plate 28 is fixedly installed on the inner side of the support plate 26, so that the pressing plate 28 is elastically buffered and supported by the supporting spring 29 and the limited telescopic rod 27, and a limit pressing switch 30 is fixedly installed on the inner side of the support frame 2, and the limit pressing switch 30 is electrically connected to the reduction motor 5 through a wire, and a limit plate 31 is fixedly installed on the rear sides of the upper and lower ends of the L-shaped lifting frame 12, and the rear end of the limit plate 31 is on the same vertical line as the pressing plate 28.

[0028] When in use, the pot-type insulator to be overhauled is disassembled. When the pot-type insulator is disassembled, the disassembled pot-type insulator is placed on the upper end of the support bracket 25. When the pot-type insulator is placed on the upper end of the support bracket 25, the pot-type insulator can be overhauled. When the pot-type insulator is overhauled, the driving motor 20 is turned on by control. When the driving motor 20 is turned on, the first transmission pulley 21 is driven to rotate. When the first transmission pulley 21 rotates, the second transmission pulley 22 is driven to rotate through belt transmission. When the second transmission pulley 22 rotates, the rotating shaft column 23 is driven to rotate. When the rotating shaft column 23 rotates, the rotating platform 24 is driven to rotate. When the rotating platform 24 rotates, the support bracket 25 and the pot-type insulator supported by the support bracket 25 are driven to rotate horizontally, thereby realizing the overhaul of the pot-type insulator while driving the pot-type insulator to rotate and adjust the overhaul position.

[0029] By controlling to start the reduction motor 5, when the reduction motor 5 is turned on, it will drive the first transmission sprocket 6 to rotate. When the first transmission sprocket 6 rotates, it will drive the second transmission sprocket 8 to rotate through the first transmission chain 7. When the second transmission sprocket 8 rotates, it will drive the transmission shaft column 9 to rotate. When the transmission shaft column 9 rotates, it will drive the third transmission sprocket 10 to rotate. When the third transmission sprocket 10 rotates, it will mesh and drive the second transmission chain 11 to lift or lower. When the second transmission chain 11 is lifted or lowered, it will drive the L-shaped lifting frame 12. When the L-shaped lifting frame 12 moves linearly up and down, the second transmission chain 11 will drive the counterweight frame 15 to move linearly up and down in the opposite direction. When the counterweight frame 15 moves linearly up and down, the counterweight block 18 will balance the L-shaped lifting frame 12. At the same time, when the L-shaped lifting frame 12 moves linearly up and down, it will synchronously drive the pot-type insulator supported by the support frame 25 to move linearly up and down, so as to realize the maintenance of the pot-type insulator while facilitating the adjustment of the maintenance position of the pot-type insulator by linear movement up and down, and avoid the situation that the maintenance position of the pot-type insulator is too high and difficult to operate;

[0030] At the same time, when the L-shaped lifting frame 12 moves linearly up and down, it will drive the limit plate 31 to move linearly up and down. When the limit plate 31 moves linearly up and down to the limit position, it will push and press the pressing plate 28. When the pressing plate 28 is pressed, it will push the compression support spring 29 and press the limit pressing switch 30 at the same time. When the support spring 29 is compressed, the support spring 29 cooperates with the limit telescopic rod 27 to provide elastic buffer support for the pressing plate 28. When the limit pressing switch 30 is pressed, the reduction motor 5 can be controlled to stop running through the limit pressing switch 30. When the reduction motor 5 stops running, the L-shaped lifting frame 12 will stop moving linearly up and down, thereby facilitating the linear movement up and down to adjust the maintenance position of the basin insulator, and at the same time, the L-shaped lifting frame 12 can be protected from limit limit when moving linearly up and down to the limit position, so as to avoid the basin insulator falling and being damaged due to collision when the L-shaped lifting frame 12 moves linearly up and down to the limit position.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A GIS pot-type insulator rotary maintenance stand, characterized in that: The invention comprises a movable base frame (1) and a support frame (2), wherein a reduction motor (5) is fixedly installed on the rear side of the upper top of the support frame (2), a first transmission sprocket (6) is fixedly installed on the transmission shaft part of the side end of the reduction motor (5), an outer end of the first transmission sprocket (6) is meshedly connected with a first transmission chain (7), an inner side of the first transmission chain (7) away from the first transmission sprocket (6) is meshedly connected with a second transmission sprocket (8), a transmission shaft column (9) is fixedly installed in the middle of the second transmission sprocket (8), third transmission sprockets (10) are fixedly installed on the outer curved surfaces of both ends of the transmission shaft column (9), and the upper end of the third transmission sprocket (10) is meshedly connected with a second transmission chain (7). The first end of the second transmission chain (11) is fixedly installed with an L-shaped lifting frame (12), the front sides of the support frame (2) are fixedly installed with vertical limit slide rails (13), the outer ends of the vertical limit slide rails (13) are limitedly fitted and movably connected with vertical limit slide seats (14), the tail end of the second transmission chain (11) is fixedly installed with a counterweight frame (15), the upper and lower ends of the outer side of the counterweight frame (15) are respectively supported and fixedly installed with limit rollers (16), the inner side wall of the middle part of the support frame (2) is fixedly installed with a limit boss (17), and a counterweight block (18) for counterweighting and balancing the L-shaped lifting frame (12) is placed inside the counterweight frame (15); A maintenance platform (19) is fixedly installed on the outer side of the L-shaped lifting frame (12), a driving motor (20) is fixedly installed on the lower side of the maintenance platform (19), a first driving pulley (21) is fixedly installed on the transmission shaft portion at the lower end of the driving motor (20), the outer end of the first driving pulley (21) is connected to the second driving pulley (22) through a belt drive, a rotating shaft column (23) is fixedly installed in the middle of the second driving pulley (22), a rotating platform (24) is fixedly installed on the upper end of the rotating shaft column (23), and the upper end of the rotating platform (24) is fixedly installed. A support frame (25) for supporting the pot-type insulator is fixedly installed, support plates (26) are fixedly installed on the front sides of the upper and lower ends of the support frame (2), and limit telescopic rods (27) are fixedly installed on the inner sides of both ends of the support plate (26). A pressing plate (28) is fixedly installed on the inner telescopic part of the limit telescopic rod (27), and a support spring (29) is fixedly installed on the outer side of the pressing plate (28). A limit pressing switch (30) is fixedly installed on the inner side of the support frame (2), and a limit plate (31) is fixedly installed on the rear sides of the upper and lower ends of the L-shaped lifting frame (12).

2. The GIS pot-type insulator rotary maintenance stand according to claim 1 is characterized in that: The four corner supports at the lower end of the movable base frame (1) are fixedly mounted with support rollers (3), and there are four support rollers (3) which are symmetrically distributed at the four corners of the lower end of the movable base frame (1), and the support rollers (3) are made of lockable universal wheels.

3. The GIS pot insulator rotary maintenance stand according to claim 2 is characterized in that: The support frame (2) is fixedly mounted on the rear side of the upper end of the mobile base frame (1), a power control cabinet (4) is fixedly mounted on the rear side of the lower end of the support frame (2), and a mobile power supply is fixedly mounted inside the power control cabinet (4).

4. The GIS pot-type insulator rotary maintenance stand according to claim 3 is characterized in that: The transmission shaft column (9) is rotatably connected to the front side of the top end of the support frame (2) through the support of the bearing seat. There are two third transmission sprocket wheels (10), which are symmetrically distributed on the outer curved surfaces at both ends of the transmission shaft column (9).

5. The GIS pot-type insulator rotary maintenance stand according to claim 4 is characterized in that: There are two vertical limit slide rails (13), which are symmetrically distributed on both sides of the front end of the support frame (2), and the front end of the vertical limit slide seat (14) is fixedly installed on both sides of the rear end of the L-shaped lifting frame (12).

6. The GIS pot-type insulator rotary maintenance stand according to claim 5, characterized in that: There are four limit rollers (16), two of which form a group. The two groups of limit rollers (16) are symmetrically distributed at the upper and lower ends of the outer side of the counterweight frame (15), and the limit rollers (16) are connected to the inner side of the limit boss (17) in a limit rolling manner.

7. The GIS pot-type insulator rotary maintenance stand according to claim 6 is characterized in that: The rotating shaft column (23) is rotatably connected to the middle of the inspection platform (19) via a rotating shaft, and a non-slip cushion is bonded to the inner side of the supporting bracket (25).

8. The GIS pot-type insulator rotary maintenance stand according to claim 7, characterized in that: There are two support plates (26), which are symmetrically distributed on the front sides of the upper and lower ends of the support frame (2); one end of the support spring (29) is fixedly installed on the inner side of the support plate (26) away from the pressing plate (28); the limit pressing switch (30) is electrically connected to the reduction motor (5) through a wire; and the rear end of the limit plate (31) is on the same vertical line as the pressing plate (28).

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