CN111037515A - 35kV circuit breaker closing spring assembly and disassembly tools - Google Patents
35kV circuit breaker closing spring assembly and disassembly tools Download PDFInfo
- Publication number
- CN111037515A CN111037515A CN202010062644.9A CN202010062644A CN111037515A CN 111037515 A CN111037515 A CN 111037515A CN 202010062644 A CN202010062644 A CN 202010062644A CN 111037515 A CN111037515 A CN 111037515A
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- China
- Prior art keywords
- circuit breaker
- screw
- spring
- holes
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 17
- 239000008397 galvanized steel Substances 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000036319 strand breaking Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
Abstract
The invention discloses a 35kV circuit breaker closing spring dismounting tool, which comprises a base, support columns, support plates, a screw, a compression nut, a lifting nut and a galvanized steel rope, wherein 2 bases are respectively fixed with one support column, the support plates are fixed at the top ends of 2 support columns, the support plates are provided with holes I with internal threads, the screw is arranged in the holes I and is in threaded fit, the lifting nut is fixed at the upper end of the screw and is positioned above the support plates, the lower end of the screw is provided with a through hole, 2 compression nuts are movably arranged at the lower part of the screw and are positioned at two sides of the through hole, the compression nut is in threaded fit with the screw, one end of the galvanized steel rope is connected in a spring reserved hole at the top of a spring to be dismounted, and the other end of the galvanized steel; this device simple structure, easy operation has solved the problem that current traditional assembly and disassembly tools can't dismantle the spring of inside and outside double-deck type, has saved manpower and materials, avoids the emergence of incident.
Description
Technical Field
The invention belongs to the technical field of electrical measurement, and particularly relates to a 35kV circuit breaker closing spring disassembling tool.
Background
An ac high-voltage vacuum circuit breaker plays an important role as an important device for breaking a circuit in a power system. Most circuit breakers used in a factory station at present adopt spring mechanisms, but the spring mechanisms have the defect that the springs are easy to fatigue after being used for a long time, so that the closing characteristic of the circuit breakers cannot meet the technical requirements, and closing energy storage springs need to be replaced. 35kV spring mechanism circuit breaker is because its compact structure, and most of them are in the cubical switchboard, the cabinet inner space is narrow and small, often lead to energy storage spring's the change operation degree of difficulty straight-line rising, and to the interchange high pressure vacuum circuit breaker who is equipped with the spring of inside and outside double-deck type, the mill is equipped with the equipment of special workstation, do not prepare specialized tool after dispatching from the factory, make in the circuit breaker cabinet because it is extremely difficult not to have special change tool dismouting spring, can't change combined floodgate energy storage spring, finally can only handle the tired soft defect of circuit breaker spring with the method of changing the circuit breaker, a large amount of manpower and.
The circuit breaker spring fatigue leads to the circuit breaker contact to move slowly, causes contact switching-on tremble, and the puncture time in advance is overlength, makes the electric arc burning time overlength, causes the circuit breaker internal pressure to increase, causes the equipment potential safety hazard. Therefore, the switching-on spring of the vacuum circuit breaker with the double-layer spring assembled in the operation period of more than 10 years needs to be replaced by using the power failure opportunity, so that the occurrence of safety accidents is avoided.
Disclosure of Invention
The invention aims to overcome the defects of the traditional dismounting tool and provide a 35kV breaker closing spring dismounting tool which utilizes a support piece to stretch a breaker closing energy storage spring and cannot dismount an inner and outer double-layer type spring.
The purpose of the tool is realized by the following technical scheme:
the invention relates to a disassembly and assembly tool for a closing spring of a 35kV circuit breaker, which comprises a base, support columns, support plates, a screw rod, a compression nut, a lifting nut and a galvanized steel rope, wherein the 2 bases are respectively fixed with one support column, the support plates are fixed at the top ends of the 2 support columns, the support plates are provided with holes I with internal threads, the screw rod is arranged in the holes I and is in threaded fit, the lifting nut is fixed at the upper end of the screw rod and is positioned above the support plates, the lower end of the screw rod is provided with a through hole, the 2 compression nuts are movably arranged at the lower part of the screw rod and are positioned at two sides of the through hole, the compression nut is in threaded fit with the screw rod, one end of the galvanized steel rope is connected in a spring.
The base is square.
The supporting plate is a cuboid.
The support column is a cylinder.
The device provided by the invention can realize the quick replacement of the tired and soft closing energy storage spring in the breaker mechanism by pulling the steel rope through the lifting screw rod, has a simple structure, is easy to operate, solves the problem that the inner and outer double-layer springs cannot be disassembled by the traditional disassembling and assembling tool, saves manpower and material resources and avoids safety accidents.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of the connection of the spring prepared hole on the top of the spring to be removed and the steel cable;
FIG. 3 is a schematic diagram of the apparatus of the present invention;
in the figure: 1-a base; 2-a support column; 3-a support plate; 4-screw rod; 5-a compression nut; 6-lifting the nut; 7-galvanized steel cord; 8-a through hole; 9-hole II; 10-a spring prepared hole; 11-hole I; 12-a circuit breaker mechanism; 13-axle pin.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the scope of the present invention is not limited to the above-mentioned descriptions.
Example 1: as shown in fig. 1 and 2, the disassembly and assembly tool for the closing spring of the 35kV circuit breaker comprises a base 1, a supporting column 2 and a supporting plate 3, screw rod 4, gland nut 5, lifting nut 6, galvanized steel cable 7, base 1 is the square body, welded fastening has a columniform support column 2 on 2 individual bases 1 respectively, 3 welded fastening of backup pad are on 2 individual support columns 2 tops, backup pad 3 is the cuboid, it has I11 of internal screw thread hole to open in backup pad 3, screw rod 4 sets up in hole I11 and screw-thread fit, lifting nut 6 fixes in 4 upper ends of screw rod and lies in backup pad 3 tops, it has through-hole 8 to open on the 4 lower extremes of screw rod, 2 5 suits of gland nut are in 4 lower parts of screw rod and lie in 8 both sides of through-hole, gland nut 5's internal thread and 4 screw-thread fit of screw rod, 7 one end of galvanized steel cable is connected in waiting to demolish the spring preformed hole 10 at spring top, the other end is connected in 4's of screw rod through-hole 8 and.
As shown in fig. 3, the method of using the above device in the field is as follows:
the first step is as follows: before replacement, the breaker mechanism 12 needs to be adjusted to a brake-separating non-energy-storage state, and the breaker mechanism releases energy;
the second step is that: penetrating a galvanized steel rope 7 into a spring preformed hole 10 at the top of a closing energy storage spring of the circuit breaker, as shown in fig. 2;
the third step: then the galvanized steel rope 7 is penetrated out from a hole II 9 on the circuit breaker operating mechanism, the condition of the steel rope is checked in time before the steel rope is penetrated out, and if serious strand scattering and strand breaking conditions are found, the intact galvanized steel rope is replaced in time;
the fourth step: the galvanized steel rope 7 penetrates out of the hole II 9 and then penetrates out of a through hole 8 in the screw rod 4, and the galvanized steel rope 7 is tightly pressed by 2 compression nuts 5 on the screw rod 4; when the galvanized steel wire rope 7 penetrates into the through hole 8, the rope ends at the two ends adopt a pair penetrating mode, so that the screw rod is ensured not to be inclined when the screw rod is lifted;
the fifth step: the assembled screw rod 4 penetrates through a hole I11 in the supporting plate, a lifting nut 6 is assembled on the upper portion of the screw rod, the lifting nut 6 is rotated by a quick wrench, and the screw rod can be rotated to pull up the spring;
and a sixth step: in the lifting process of the screw rod 4, the lifting condition of a closing spring is concerned, and when the upper shaft pin is not stressed any more or becomes loose, the lifting process is stopped in time, and the shaft pin can be tried to be pushed out; in the process, the lifting height needs to be continuously adjusted, and the overstretch closing spring is switched off to cause the galvanized steel wire rope to be broken under stress, so that workers are accidentally injured;
the seventh step: after the upper shaft pin 13 is withdrawn, the spring is taken out from the energy storage rocker arm at the lower part, and when the spring is taken out from the energy storage rocker arm at the lower part, the closing energy storage spring at the inner side of the circuit breaker operating mechanism is difficult to avoid being blocked by the metal partition plate because the metal partition plate at the two sides has a relatively compact distance, at the moment, the circuit breaker energy storage rocker arm can be downwards rotated by using a pipe wrench or a special closing wrench, and when the circuit breaker energy storage rocker arm is rotated to be horizontal and close to the outer side, the closing spring is taken out without being blocked by the metal partition plate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a 35kV circuit breaker closing spring assembly and disassembly tools which characterized in that: comprises a base (1), supporting columns (2), supporting plates (3), screw rods (4), gland nuts (5), lifting nuts (6) and galvanized steel ropes (7), wherein the supporting columns (2) are respectively fixed on the 2 bases (1), the supporting plates (3) are fixed at the top ends of the 2 supporting columns (2), holes I (11) with internal threads are formed in the supporting plates (3), the screw rods (4) are arranged in the holes I (11) and are in threaded fit with the holes I, the lifting nuts (6) are fixed at the upper ends of the screw rods (4) and are positioned above the supporting plates (3), through holes (8) are formed in the lower ends of the screw rods (4), the 2 gland nuts (5) are movably arranged at the lower parts of the screw rods (4) and are positioned on two sides of the through holes (8), the gland nuts (5) are in threaded fit with the screw rods (4), one end of each galvanized steel rope (7) is connected in a spring reserved hole, the other end is connected in a through hole (8) of the screw rod (4) and is compressed and fixed by 2 compression screw caps (5).
2. The 35kV circuit breaker closing spring assembly and disassembly tools of claim 1, characterized in that: the base (1) is square.
3. The 35kV circuit breaker closing spring assembly and disassembly tools of claim 1, characterized in that: the supporting plate (3) is a cuboid.
4. The 35kV circuit breaker closing spring assembly and disassembly tools of claim 1, characterized in that: the supporting column (2) is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062644.9A CN111037515A (en) | 2020-01-20 | 2020-01-20 | 35kV circuit breaker closing spring assembly and disassembly tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062644.9A CN111037515A (en) | 2020-01-20 | 2020-01-20 | 35kV circuit breaker closing spring assembly and disassembly tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111037515A true CN111037515A (en) | 2020-04-21 |
Family
ID=70231072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010062644.9A Pending CN111037515A (en) | 2020-01-20 | 2020-01-20 | 35kV circuit breaker closing spring assembly and disassembly tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111037515A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202656147U (en) * | 2012-07-16 | 2013-01-09 | 重庆市电力公司教育培训中心 | Tool for dismantling spring of scissor type vacuum circuit breaker |
| CN202922537U (en) * | 2012-11-12 | 2013-05-08 | 冀北电力有限公司秦皇岛电力公司 | Dismantling tool for energy storage spring of breaker |
| CN103158106A (en) * | 2011-12-12 | 2013-06-19 | 河南省电力公司焦作供电公司 | Special tool for breaker hydraulic mechanism valve body maintenance and using method of the same |
| CN104097183A (en) * | 2014-06-25 | 2014-10-15 | 国家电网公司 | Device for assembling and disassembling spring of circuit breaker |
| CN106971916A (en) * | 2017-03-15 | 2017-07-21 | 国网宁夏电力公司中卫供电公司 | Breaker open operation spring more changing device |
| CN211709204U (en) * | 2020-01-20 | 2020-10-20 | 云南电网有限责任公司楚雄供电局 | 35kV circuit breaker closing spring assembly and disassembly tools |
-
2020
- 2020-01-20 CN CN202010062644.9A patent/CN111037515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158106A (en) * | 2011-12-12 | 2013-06-19 | 河南省电力公司焦作供电公司 | Special tool for breaker hydraulic mechanism valve body maintenance and using method of the same |
| CN202656147U (en) * | 2012-07-16 | 2013-01-09 | 重庆市电力公司教育培训中心 | Tool for dismantling spring of scissor type vacuum circuit breaker |
| CN202922537U (en) * | 2012-11-12 | 2013-05-08 | 冀北电力有限公司秦皇岛电力公司 | Dismantling tool for energy storage spring of breaker |
| CN104097183A (en) * | 2014-06-25 | 2014-10-15 | 国家电网公司 | Device for assembling and disassembling spring of circuit breaker |
| CN106971916A (en) * | 2017-03-15 | 2017-07-21 | 国网宁夏电力公司中卫供电公司 | Breaker open operation spring more changing device |
| CN211709204U (en) * | 2020-01-20 | 2020-10-20 | 云南电网有限责任公司楚雄供电局 | 35kV circuit breaker closing spring assembly and disassembly tools |
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