CN112670876A - GIS (gas insulated switchgear) and HGIS (hybrid gas insulated switchgear) combined electrical apparatus HMB-8 mechanism movable type overhauling, dismounting and mounting platform - Google Patents
GIS (gas insulated switchgear) and HGIS (hybrid gas insulated switchgear) combined electrical apparatus HMB-8 mechanism movable type overhauling, dismounting and mounting platform Download PDFInfo
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- CN112670876A CN112670876A CN202011424441.6A CN202011424441A CN112670876A CN 112670876 A CN112670876 A CN 112670876A CN 202011424441 A CN202011424441 A CN 202011424441A CN 112670876 A CN112670876 A CN 112670876A
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Abstract
The invention discloses a movable overhaul, disassembly and assembly platform for a HMB-8 mechanism of a GIS (gas insulated switchgear) and HGIS (hybrid gas insulated switchgear) combined electrical appliance, which comprises a bottom plate, wherein a supporting structure frame is symmetrically arranged on the bottom plate, a fixing hook is arranged on the supporting structure frame, one end of a hydraulic lifting mechanism is arranged on the bottom plate, a U-shaped support is arranged at the other end of the hydraulic lifting mechanism, a bearing table is arranged on the U-shaped support, and a V-shaped groove is formed in the upper side wall of the bearing table; the bottom surface of the bottom plate is provided with a detachable supporting piece and a displacement mechanism. Through the setting of removable support piece and displacement mechanism, can freely adjust the construction mode according to mechanism's installation environment, mechanism's mounting height of difference. Simultaneously can the rational utilization space, the operation of the maintainer of being convenient for reduces the operation and electrocutes the risk, convenient removal, quick detachable and accomodate.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to a rail moving type overhaul dismounting platform for a HMB-8 mechanism of a GIS (gas insulated switchgear) and HGIS (hybrid gas insulated switchgear).
Background
At present, GIS and HGIS (gas insulated fully enclosed) combined electrical appliances, also called tank type circuit breaker combined electrical appliances, are widely used in common transformer substations on the market. The mechanism has the defects of low reliability and high frequency due to a plurality of reasons such as mechanism manufacturing level, internal part precision, long-time external operation and the like, when serious faults occur, the mechanism needs to be disassembled, assembled and replaced, and when the HMB-8 type mechanism of the combined electrical apparatus has problems, a common maintenance construction scheme is that a crane hook fixing mechanism is matched with a plurality of maintenance personnel to complete replacement and maintenance operation in a narrow space, the disassembling and assembling precision cannot be guaranteed, the operation flow is very complicated, and when a special operation vehicle operates, the risk of electric shock caused by insufficient safety distance with live equipment exists.
Disclosure of Invention
The invention aims to provide a GIS and HGIS combined electrical apparatus HMB-8 mechanism movable type maintenance dismounting platform, which solves the problems that the precision of the existing dismounting mode cannot be guaranteed and the operation flow is very complicated.
In order to achieve the purpose, the invention provides the following technical scheme: a movable overhaul, disassembly and assembly platform for a HMB-8 mechanism of a GIS (gas insulated switchgear) and HGIS (hybrid gas insulated switchgear) combined electrical appliance comprises a bottom plate, wherein a supporting structure frame is symmetrically arranged on the bottom plate, a fixing hook is arranged on the supporting structure frame, one end of a hydraulic lifting mechanism is arranged on the bottom plate, a U-shaped support is arranged at the other end of the hydraulic lifting mechanism, a bearing table is arranged on the U-shaped support, and a V-shaped groove is formed in the upper side wall of the bearing table; the bottom surface of the bottom plate is provided with a detachable supporting piece and a displacement mechanism.
Preferably, the detachable supporting member comprises
The threaded sleeves are arranged at four corners of the bottom surface of the bottom plate;
the positioning screw rod is matched with the threaded sleeve;
the supporting plate is arranged on the bottom surface of the positioning screw rod.
Or the detachable supporting member comprises
The hydraulic motors are arranged at four corners of the bottom surface of the bottom plate;
a support leg arranged at the output end of the hydraulic motor
Preferably, the displacement mechanism comprises rollers, and the rollers are arranged at four corners of the bottom surface of the bottom plate.
Preferably, the displacement mechanism further comprises a base, a slide rail is arranged on the base, a slide block is arranged on the lower side wall of the bottom plate, and the slide block is connected with the slide rail in a matching manner.
Preferably, the slide block is provided with a guide rail clamp.
Preferably, the V-shaped groove is provided with a transverse positioning protrusion, and the transverse positioning protrusion is provided with a hand-buckling groove.
The invention also provides an operation method of the movable overhaul, disassembly and assembly platform of the HMB-8 mechanism of the GIS and HGIS combined electrical apparatus, which comprises the following steps:
A. pushing the bottom plate to the position below the HMB-8 mechanism along the slide rail, and locking the slide block and the slide rail through the guide rail clamp;
B. the positioning screw rod is arranged in the threaded sleeve to complete the support of the four corners of the bottom surface of the bottom plate;
C. connecting the fixed hook with a lifting point of the HMB-8 mechanism through a connecting wire, and lifting the bearing table through a hydraulic lifting mechanism to complete the support of the HMB-8 mechanism;
D. separating the HMB-8 mechanism from the main body, and detaching the support frame connected with the HMB-8 mechanism, thereby completing the detachment of the HMB-8 mechanism;
E. and (4) dismantling the positioning screw, unlocking the guide rail clamp to the slide rail, and carrying the dismantled HMB-8 mechanism.
Compared with the prior art, the invention has the beneficial effects that: through the arrangement of the maintenance, disassembly and assembly platform transportation structure with the rails, when the HMB-8 mechanism needs to be assembled or disassembled, stable conveying of the HMB-8 mechanism can be completed along the rail direction, and therefore the smooth operation flow is guaranteed.
Through setting up hydraulic pressure elevating system, make things convenient for the whole folding and occupation of land space of device to by motor drive can accomplish the flexible of hinge frame, make things convenient for constructor to accomplish the operation in limited space. The bearing stability of the HMB-8 mechanism is ensured by arranging the bearing table with the V-shaped groove on the U-shaped support. Meanwhile, the fixed hook can be connected with a lifting point of the HMB-8 mechanism through a wiring, and the stability of the HMB-8 mechanism in the moving process is maintained.
By arranging the V-shaped bearing table with the transverse positioning protrusion, the position of the HMB-8 mechanism in the front and back direction can be limited, so that the HMB-8 mechanism is prevented from sliding off in the carrying process. And through the arrangement of the hand buckle groove, a certain space can be reserved when constructors operate the HMB-8 mechanism, so that the normal carrying of the HMB-8 mechanism is not influenced.
Through the arrangement of the mechanism, the construction mode can be freely adjusted according to different mechanism installation environments and mechanism installation heights. Simultaneously can the rational utilization space, the operation of the maintainer of being convenient for reduces the operation and electrocutes the risk, convenient removal, quick detachable and accomodate.
Drawings
FIG. 1 is a schematic structural diagram of a movable maintenance and disassembly platform of a HMB-8 mechanism of a GIS and HGIS combined electrical apparatus
FIG. 2 is a schematic diagram of a displacement mechanism of a movable maintenance and disassembly platform of an HMB-8 mechanism of a GIS and HGIS combined electrical apparatus.
FIG. 3 is a schematic view of a slide rail of a movable maintenance and disassembly platform of an HMB-8 mechanism of the GIS and HGIS combined electrical apparatus.
FIG. 4 is a schematic diagram of an HMB-8 mechanism of a movable maintenance and disassembly platform of an HMB-8 mechanism of a GIS and HGIS combined electrical apparatus.
FIG. 5 is a schematic view of a supporting table of a movable maintenance and disassembly platform of an HMB-8 mechanism of the GIS and HGIS combined electrical apparatus.
FIG. 6 is a schematic view of a support structure of a HMB-8 mechanism movable maintenance and disassembly platform of a GIS and HGIS combined electrical apparatus according to another embodiment of the present invention.
1. A base plate; 2. a support structure frame; 3. a fixed hook; 4. a hydraulic lifting mechanism; 5. a U-shaped support; 6. a receiving table; 7. a threaded sleeve; 8. positioning a screw rod; 9. a support plate; 10. a roller; 11. a base; 12. a slide rail; 13. a slider; 14. a rail clamp; 15. an HMB-8 mechanism; 16. a main body; 17. a support frame; 18. a hydraulic motor; 19. a support leg; 20. a lateral positioning protrusion; 21. a hand buckle groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a movable overhaul, disassembly and assembly platform for a HMB-8 mechanism of a GIS and HGIS combined electrical appliance comprises a bottom plate 1, wherein supporting structure frames 2 are symmetrically arranged on the bottom plate 1, the supporting structure frames 2 are arranged at the positions, close to the front, of the bottom plate 1, collision between the supporting structure frames 2 and a to-be-processed HMB-8 mechanism 15 is avoided in the process of overall movement of the bottom plate 1, the supporting structure frames 2 are detachably connected and arranged on the bottom plate 1, it is guaranteed that the supporting structure frames 2 can be disassembled when certain special conditions occur, and lifting of the HMB-8 mechanism is completed through a bearing platform 6 alone. Be provided with on the bearing structure frame 2 fixedly collude 3, be provided with the one end of hydraulic pressure elevating system 4 on the bottom plate 1, U type support 5 is installed to the other end of hydraulic pressure elevating system 4, and hydraulic pressure elevating system 4 is convenient folding and takes up an area of the space for a short time, can accomplish the flexible of hinge frame through motor drive, makes things convenient for the constructor to accomplish the operation in limited space. Meanwhile, a pair of slideways can be arranged on the bottom plate 1, a mounting plate is arranged below the hydraulic lifting mechanism 4 and is connected to the slideways in a sliding mode, and an included angle of 90 degrees is formed between each slideway and the corresponding sliding rail 12, so that the direction of the hydraulic lifting mechanism 4 can be adjusted as required, and the bearing effect of the HMB-8 mechanism is guaranteed.
The U-shaped support 5 is provided with the bearing table 6, the upper side wall of the bearing table 6 is provided with a V-shaped groove, bearing stability during displacement of the HMB-8 mechanism in the left and right directions is guaranteed through the arrangement of the V-shaped groove, and the bent angle of the V-shaped groove is arc-shaped and is attached to the outer side wall of the HMB-8 mechanism. Meanwhile, the fixed hook 3 can be connected with a lifting point of the HMB-8 mechanism through a connecting rope, so that the stability of the HMB-8 mechanism in the moving process is further ensured; the bottom surface of the bottom plate 1 is provided with a detachable supporting piece and a displacement mechanism.
The detachable supporting piece comprises a threaded sleeve 7, and the threaded sleeve 7 is arranged at four corners of the bottom surface of the bottom plate 1;
the positioning screw 8 is matched with the threaded sleeve 7;
and the supporting plate 9 is installed on the bottom surface of the positioning screw rod 8, and the supporting plate 9 is installed on the bottom surface of the positioning screw rod 8. After the position of the bottom plate 1 is determined, the positioning screw 8 can be screwed in the thread sleeve 7 to complete the installation of the supporting plate 9, so that the stability of workpieces in the whole construction process is ensured, the dismounting precision is prevented from being guaranteed, and the risk of electric shock is caused. When there is a step at the lower end of the bottom plate 1, the installation of the positioning screw 8 needs to ensure that the bottom plate 1 can be horizontally supported so as to be parallel to the ground.
The displacement mechanism comprises idler wheels 10, and the idler wheels 10 are arranged at four corners of the bottom surface of the bottom plate 1, so that the smoothness of the displacement process is guaranteed. Meanwhile, the bottom plate 1 is provided with a level gauge, so that whether the bottom plate 1 is in a horizontal state at any time or not can be monitored conveniently.
The base 11 is provided with a slide rail 12 on the base 11, the lower side wall of the bottom plate 1 is provided with a slide block 13, and the slide block 13 is connected with the slide rail 12 in a matching way. The slide block 13 is provided with a guide rail clamp 14, so that the bottom plate 1 can freely and quickly slide to a position where the mechanism needs to be disassembled, or a new mechanism reaches a position below a mounting point, thereby completing the mechanism replacement operation without consuming more manpower for carrying.
The V-shaped groove of the bearing table 6 is provided with a transverse positioning protrusion 20, the transverse positioning protrusion 20 is provided with a hand-buckling groove 21, and the HMB-8 mechanism is limited through the transverse positioning protrusion 20. The lateral positioning projections 20 are distributed at the four corners of the receiving table 6 so that the position of the HMB-8 mechanism in the front-rear direction can also be restricted. The hand buckle groove 21 can ensure that a certain space is reserved when a constructor operates the HMB-8 mechanism so as not to influence the normal carrying of the HMB-8 mechanism. Meanwhile, the middle part of the bearing table 6 is provided with a large-area hollow part, so that the construction personnel can directly carry the HMB-8 mechanism on the bearing table 6 conveniently.
The invention also provides an operation method of the movable overhaul, disassembly and assembly platform of the HMB-8 mechanism of the GIS and HGIS combined electrical apparatus, which comprises the following steps:
A. the bottom plate 1 is pushed to the lower part of an HMB-8 mechanism 15 along a slide rail 12, and a slide block 13 and the slide rail 12 are locked through a guide rail clamp 14;
B. a positioning screw 8 is arranged in the threaded sleeve 7 to complete the support of the four corners of the bottom surface of the bottom plate 1;
C. the fixed hook 3 is connected with a lifting point of the HMB-8 mechanism 15 through a connecting wire, and the bearing table 6 is lifted through the hydraulic lifting mechanism 4 to complete the support of the HMB-8 mechanism 15; the two connecting ropes can be simultaneously connected with one lifting point of the HMB-8 mechanism 15, and also can be connected with two symmetrically arranged lifting points on the HMB-8 mechanism 15, so that the lifting stability is ensured. At the same time, the annular groove of the HMB-8 mechanism 15 needs to be aligned with the transverse positioning protrusion 20 on the receiving platform 6.
D. Detaching the HMB-8 mechanism 15 from the body 16 and removing the support bracket 17 attached to the HMB-8 mechanism 15 to complete the detachment of the HMB-8 mechanism 15; the disassembled HMB-8 mechanism 15 will be placed on the V-shaped groove of the receiving table 6 so that no matter how the base plate 1 moves laterally, the HMB-8 mechanism 15 will not fall off.
E. And (3) dismantling the positioning screw rod 8, unlocking the guide rail clamp 14 from the slide rail 12, and carrying the disassembled HMB-8 mechanism 15, so that the subsequent maintenance work can be carried out.
After the disassembly is finished, the disassembled HMB-8 mechanism 15 is wholly and parallelly moved to a position where a tray is arranged in advance, and subsequent constructors can finish the integral transportation of the mechanism according to the requirements.
Referring to fig. 6, the present invention further provides another technical solution, which is different from the above technical solution in that the detachable supporting member includes a hydraulic motor 18, the hydraulic motor 18 is installed at four corners of the bottom surface of the bottom plate 1, the hydraulic motor 18 is an electronic power-assisted motor, the output length of the hydraulic motor 18 can be controlled by electric power under conventional adjustment, and when fine adjustment is performed, the hydraulic part is started, so as to stably support the bottom plate 1;
and the support leg 19 is arranged at the output end of the hydraulic motor 18. During operation, only the hydraulic motor 18 needs to be started to complete extension or contraction, so that the bottom plate 1 is horizontally supported, subsequent operation is facilitated, and other technical characteristics are unchanged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A GIS, HGIS combined electrical apparatus HMB-8 movable maintenance dismouting platform of mechanism which characterized in that: the lifting device comprises a bottom plate (1), wherein support structure frames (2) are symmetrically arranged on the bottom plate (1), a fixing hook (3) is arranged on each support structure frame (2), one end of a hydraulic lifting mechanism (4) is arranged on the bottom plate (1), a U-shaped support (5) is arranged at the other end of the hydraulic lifting mechanism (4), a bearing table (6) is arranged on each U-shaped support (5), and a V-shaped groove is formed in the upper side wall of each bearing table (6); the bottom surface of the bottom plate (1) is provided with a detachable supporting piece and a displacement mechanism.
2. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 1, characterized by: the detachable supporting member comprises
The threaded sleeves (7) are mounted at four corners of the bottom surface of the bottom plate (1);
the positioning screw rod (8), the said positioning screw rod (8) cooperates with threaded sleeve (7);
and the supporting plate (9), wherein the supporting plate (9) is arranged on the bottom surface of the positioning screw rod (8).
3. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 1, characterized by: the detachable supporting member comprises
The hydraulic motors (18), the hydraulic motors (18) are arranged at four corners of the bottom surface of the bottom plate (1);
the supporting leg (19), the supporting leg (19) sets up in the output of hydraulic motor (18).
4. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 1, characterized by: the displacement mechanism comprises rollers (10), and the rollers (10) are arranged at four corners of the bottom surface of the bottom plate (1).
5. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 1, characterized by: the displacement mechanism further comprises a base (11), a sliding rail (12) is arranged on the base (11), a sliding block (13) is arranged on the lower side wall of the bottom plate (1), and the sliding block (13) is connected with the sliding rail (12) in a matched mode.
6. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 5, characterized by: and a guide rail clamp (14) is arranged on the sliding block (13).
7. The GIS, HGIS combined electrical apparatus HMB-8 mechanism movable overhauls dismouting platform of claim 1, characterized by: the V-shaped groove is provided with a transverse positioning protrusion (20), and the transverse positioning protrusion (20) is provided with a hand-buckling groove (21).
8. An operation method of the movable overhaul dismounting platform of the HMB-8 mechanism of the GIS and HGIS combined electrical appliance according to any one of claims 1 to 7, wherein the operation method comprises the following steps: comprises the following steps
A. The bottom plate (1) is pushed to the lower part of an HMB-8 mechanism along a slide rail (12), and a slide block (13) and the slide rail (12) are locked through a guide rail clamp (14);
B. the positioning screw rod (8) is arranged in the threaded sleeve (7) to complete the support of the four corners of the bottom surface of the bottom plate (1);
C. the fixed hook (3) is connected with a lifting point of the HMB-8 mechanism through a connecting wire, and the bearing table (6) is lifted up through the hydraulic lifting mechanism (4) to complete the support of the HMB-8 mechanism;
D. separating the HMB-8 mechanism from the main body, and detaching the support frame connected with the HMB-8 mechanism, thereby completing the detachment of the HMB-8 mechanism;
E. and (3) removing the positioning screw (8), releasing the locking of the guide rail clamp (14) on the slide rail (12), and carrying the disassembled HMB-8 mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424441.6A CN112670876B (en) | 2020-12-08 | 2020-12-08 | Movable overhauling, disassembling and assembling platform for HMB-8 mechanism of GIS (gas insulated switchgear) and HGIS (gas insulated switchgear) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424441.6A CN112670876B (en) | 2020-12-08 | 2020-12-08 | Movable overhauling, disassembling and assembling platform for HMB-8 mechanism of GIS (gas insulated switchgear) and HGIS (gas insulated switchgear) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112670876A true CN112670876A (en) | 2021-04-16 |
| CN112670876B CN112670876B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011424441.6A Active CN112670876B (en) | 2020-12-08 | 2020-12-08 | Movable overhauling, disassembling and assembling platform for HMB-8 mechanism of GIS (gas insulated switchgear) and HGIS (gas insulated switchgear) |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139313A (en) * | 2013-09-30 | 2014-11-12 | 国家电网公司 | V-shaped bracket |
| CN105576535A (en) * | 2014-10-17 | 2016-05-11 | 中国长江电力股份有限公司 | Tool specialized for dismounting 500kV GIS circuit breaker operating mechanism |
| CN205610068U (en) * | 2016-05-18 | 2016-09-28 | 中国长江电力股份有限公司 | A auxiliary device for high tension switchgear current transformer dismouting |
| CN208867133U (en) * | 2018-10-23 | 2019-05-17 | 龙洋 | A kind of electric power apparatus examination auxiliary device |
| CN209989011U (en) * | 2019-01-30 | 2020-01-24 | 青岛力沃液压机械有限公司 | Dolly for disassembling and assembling coupler draft gear |
| CN212050215U (en) * | 2020-04-20 | 2020-12-01 | 中国长江电力股份有限公司 | GIS current transformer integral dismounting device |
-
2020
- 2020-12-08 CN CN202011424441.6A patent/CN112670876B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139313A (en) * | 2013-09-30 | 2014-11-12 | 国家电网公司 | V-shaped bracket |
| CN105576535A (en) * | 2014-10-17 | 2016-05-11 | 中国长江电力股份有限公司 | Tool specialized for dismounting 500kV GIS circuit breaker operating mechanism |
| CN205610068U (en) * | 2016-05-18 | 2016-09-28 | 中国长江电力股份有限公司 | A auxiliary device for high tension switchgear current transformer dismouting |
| CN208867133U (en) * | 2018-10-23 | 2019-05-17 | 龙洋 | A kind of electric power apparatus examination auxiliary device |
| CN209989011U (en) * | 2019-01-30 | 2020-01-24 | 青岛力沃液压机械有限公司 | Dolly for disassembling and assembling coupler draft gear |
| CN212050215U (en) * | 2020-04-20 | 2020-12-01 | 中国长江电力股份有限公司 | GIS current transformer integral dismounting device |
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| Publication number | Publication date |
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| CN112670876B (en) | 2023-06-09 |
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