CN203628015U - Replacement tool special for rubber rings of transformer body oil drain valves - Google Patents
Replacement tool special for rubber rings of transformer body oil drain valves Download PDFInfo
- Publication number
- CN203628015U CN203628015U CN201320654208.6U CN201320654208U CN203628015U CN 203628015 U CN203628015 U CN 203628015U CN 201320654208 U CN201320654208 U CN 201320654208U CN 203628015 U CN203628015 U CN 203628015U
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- Prior art keywords
- cup
- top board
- handle
- casing pipe
- bowl
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- Expired - Lifetime
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- 239000000446 fuel Substances 0.000 claims description 11
- 239000007779 soft material Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A replacement tool special for rubber rings of transformer body oil drain valves comprises a top board, a top cup and two screw rods, wherein the top cup is provided with a cup handle; the two screw rods are placed on the two sides of the top board; the tail of the rod body of each screw rod is provided with a nut in a screwed mode; a casing pipe perpendicular to the top board is fixedly arranged in the middle of the top board; the cup handle of the top cup extends into the casing pipe; the free-end face of the cup handle abuts against the head of an ejector rod screwed into the casing pipe from the other end of the casing pipe; the free end of the ejector rod serves as a handle connection end and is exposed out of the casing pipe. After the casing pipe and the ejector rod are additionally arranged, the cup handle of the top cup extends into the casing pipe to abut against the ejector rod only in a point contact mode. When the replacement tool operates, the casing pipe has the guide and connection functions, the ejector rod pushes the top cup to move forwards, and as the top cup and the top board are split, influence on axial jacking force of the top cup from non-synchronous screwing of the two screw rods is relatively reduced, and a valve core is prevented from being ejected aslant and causing oil leakage of a transformer.
Description
Technical field
The utility model relates to a kind of transformer repair outfit, relates in particular to a kind of power transformer body fuel outlet valve rubber circle and changes special tool.
Background technique
Transformer is the important constituent element of electric power facility, and its normal operational relation the safety of whole network system.As the ball valve of transformer body fuel outlet valve, be subject to the impact of the factors such as working life, running environment and external temperature, the rubber circle being placed on inside and outside shell flange facing is an easily damaged parts, and therefore, it is repaired and changes is the work that power department need to often be faced.Due to repair change need to be not having a power failure, carry out under transformer normal operating condition, thereby seem abnormal trouble.At present, usual way is to rely on a kind of special tool, and the spherical valve core of fuel outlet valve is slightly inwardly pushed up, make the primary sealing area in this spool outside become time sealing surface, transfer to after primary sealing area at inner casing sealing surface, can unload lower casing, damaged the replacing of rubber circle.But, there is following problems in this special tool: because the pagoda of bowls of pushing tow spool is vertically fixed on a top board in the time of practical application, pagoda of bowls completes and relies on the straight line motion of top board to guarantee the axial jacking force of spool sphere, otherwise, will cause departing from of axial jacking force, and occur the phenomenon that the askew spool in top causes transformer oil to leak.And in fact, to guarantee that with this special tool departing from does not appear in axial jacking force is to be difficult to realize, because operator advance top board to travel forward, realize by two nuts of turn, and these two nuts are located on respectively on two screw rods, these two screw rod symmetries are set in the both sides of top board, therefore, can only be precession separately when operation, even if two nuts of two operator's turns simultaneously, also can not guarantee synchronous precession.
Summary of the invention
For solving the problems of the technologies described above, the utility model aims to provide a kind of transformer body fuel outlet valve rubber circle and changes special tool, not only can change easily rubber circle by this instrument, and, there will not be transformer oil leakage phenomenon.
For achieving the above object, the utility model has adopted following technological scheme, this transformer body fuel outlet valve rubber circle is changed the structure of special tool, comprise a top board and a pagoda of bowls with bowl handle, and be placed in two screw rods of described top board both sides, the shaft afterbody of these two screw rods is rotary with respectively a nut, it is characterized in that: described top board middle part is fixed with a sleeve pipe perpendicular with it, the bowl handle of described pagoda of bowls stretches in the pipe of this sleeve pipe, the push rod head of the free-end end face of this bowl of handle and a push rod screwing in from the described sleeve pipe the other end offsets, the free-end of this push rod is exposed outside described sleeve pipe as handle connecting end.
As preferably, the push rod head of described push rod is taper, the tapered concave surface of free-end end face of described bowl handle, and the ring wall of this taper concave surface do not touch mutually with described taper, and the diapire of the end face of described taper and described taper concave surface offsets.
As preferably, the circumferential ring wall of the rim of a bowl of described pagoda of bowls forms an anchor ring of receiving sphere.
As preferably, the rim of a bowl of described pagoda of bowls is provided with soft material circle.
Beneficial effect: than existing, the utility model is set up after sleeve pipe and push rod structure, the bowl handle of pagoda of bowls is stretched in sleeve pipe and offset with push rod, and both only offsets with a way of contact.When operation, sleeve pipe has guiding and anastomosis concurrently, and relies on a push rod pushing tow pagoda of bowls reach, pagoda of bowls and top board split in addition, relatively reduce because of the impact of two asynchronous precessions of screw rod on the axial jacking force of pagoda of bowls, caused transformer oil to leak and can not push up askew spool.
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is an embodiment's of the utility model structural representation.
Fig. 2 is the structure for amplifying schematic perspective view of pagoda of bowls in Fig. 1.
Fig. 3 is the use state description figure of special tool shown in Fig. 1.
In figure: top board 1, sleeve pipe 2, pagoda of bowls 3, bowl handle 31, the rim of a bowl 32, bowl chamber 33, the first screw rods 4, screw head 41, the second screw rods 5, nut 51, push rod 6, push rod head 61, handle connecting end 62, gap 7, inner casing flange 71, shell flange 72, fastening nut 73, bolt 731.
Embodiment
Referring to Fig. 1, Fig. 2.This special tool, comprises top board 1 and a pagoda of bowls 3 with bowl handle 31, and symmetrical placement is at two screw rods of top board 1 both sides, i.e. the first screw rod 4 and the second screw rod 5.Top board 1 is a rectangular metal plate, and bowl handle 31 is a metal solid cylinder.The shaft front end of two screw rods is to be equipped with screw thread on screw head 41, and their afterbody is rotary with respectively a nut 51, and precession nut 51 can make top board 1 move forward.The middle part of pagoda of bowls 3 is fixed with a sleeve pipe 2 perpendicular with it, and the length of sleeve pipe 2 should be suitable with two screw rods.The bowl handle 31 of pagoda of bowls 3 stretches into from the front end of sleeve pipe 2, and the free-end end face of this bowl of handle 31 offsets with the push rod head 61 of the push rod 6 screwing in from sleeve pipe 2 rear ends, and the free-end of this push rod 6 is that rear end is exposed outside the port of the rear end of sleeve pipe 2 as handle connecting end 62.
As preferably in the specific implementation, the push rod head 61 of push rod 6 is preferably taper, matches therewith, the tapered concave surface of free-end end face of bowl handle 31, but the ring wall of taper concave surface should not touched with the taper of push rod head 61 mutually, both only offset with the end face of taper and the diapire of taper concave surface.Because relatively both this scheme offset with plane, can eliminate because of frictional force excessive, may make pagoda of bowls 3 produce the phenomenon of precession, injure the spherical valve core of fuel outlet valve, and may make the straight line motion of pagoda of bowls 3 be affected, make axial jacking force occur skew, cause leakage and push up askew spool.
The circumferential ring wall of the rim of a bowl of pagoda of bowls 3 forms an anchor ring of receiving sphere, and this kiss junction that is conducive to pagoda of bowls 3 and spool is in stable mated condition.Soft material circle on pagoda of bowls 3 the rims of a bowl, as rubber ring is conducive to protect spool face.
Referring to Fig. 3, and in conjunction with other view.When operation, first unload two of fuel outlet valve inner casing flange 71 and shell flange 72 to corner bolt 731 and fastening nut 73.Because the fixed hole of inner casing flange 71 has internal thread, and a just through hole without internal thread of shell flange 72, therefore, be located on the fixed hole of inner casing flange 71 after respectively the screw head of two screw rods 41 being extended through to the through hole of shell flange 72; Then the bowl handle 31 in pagoda of bowls 3 is inserted on top board 1 to entirety of the interior formation of sleeve pipe 2 and this entirety is fixed on fuel outlet valve, now the first screw rod 4 and the second screw rod 5 touch spool face center through the soft material circle on two symmetrical holes on top board and pagoda of bowls mouth 32, tighten inward again two nuts 51 until touching top board 1 has now just been fixed top board 1 to the distance between inner casing flange 71; Finally by operating grip turn push rod 6, pushing tow pagoda of bowls 3 makes spherical valve core do to move in a little slightly, makes the inferior sealing surface of spool inner side become primary sealing area, thereby the satisfied fuel outlet valve shell flange 72 that shifts out is changed the round condition of aging damaged rubber.Meet replacing condition and unload again all fastening nuts 73 and bolt 731 thereof later, shell flange 72 is retreated to the first screw rod 4 and the second screw rod 5 position near top board 1 to the right, separate with inner casing flange 71, now, can change easily the plantation rubber that is positioned at gap 7.Change completely, first shell flange 72 is resetted and is fastened on inner casing flange 71, then, shed special tool, spool resets under oil pressure effect, is loaded on two to corner bolt 731 and fastening nut 73, completes replacing operation.
The present embodiment is only explanation technology contents of the present utility model, and any simple deformation design of making according to the present embodiment, all should include protection domain of the present utility model in.
Claims (4)
1. a transformer body fuel outlet valve rubber circle is changed special tool, comprise a top board (1) and a pagoda of bowls with bowl handle (31) (3), and be placed in two screw rods of described top board (1) both sides, the shaft afterbody of these two screw rods is rotary with respectively a nut (51), it is characterized in that: described top board (1) middle part is fixed with a sleeve pipe perpendicular with it (2), the bowl handle (31) of described pagoda of bowls (3) stretches in the pipe of this sleeve pipe (2), the push rod head (61) of the free-end end face of this bowl of handle (31) and a push rod (6) screwing in from described sleeve pipe (2) the other end offsets, the free-end of this push rod (6) is exposed outside described sleeve pipe (2) as handle connecting end (62).
2. special tool as claimed in claim 1, it is characterized in that: the push rod head (61) of described push rod (6) is taper, the tapered concave surface of free-end end face of described bowl handle (31), and the ring wall of this taper concave surface is not touched mutually with described taper, the diapire of the end face of described taper and described taper concave surface offsets.
3. special tool as claimed in claim 1, is characterized in that: the circumferential ring wall of the rim of a bowl of described pagoda of bowls (3) forms an anchor ring of receiving sphere.
4. special tool as claimed in claim 1, is characterized in that: the rim of a bowl of described pagoda of bowls (3) is provided with soft material circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654208.6U CN203628015U (en) | 2013-10-23 | 2013-10-23 | Replacement tool special for rubber rings of transformer body oil drain valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654208.6U CN203628015U (en) | 2013-10-23 | 2013-10-23 | Replacement tool special for rubber rings of transformer body oil drain valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628015U true CN203628015U (en) | 2014-06-04 |
Family
ID=50814492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654208.6U Expired - Lifetime CN203628015U (en) | 2013-10-23 | 2013-10-23 | Replacement tool special for rubber rings of transformer body oil drain valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203628015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542171A (en) * | 2013-10-23 | 2014-01-29 | 国家电网公司 | Special tool for replacing rubber ring of oil drain valve of transformer |
-
2013
- 2013-10-23 CN CN201320654208.6U patent/CN203628015U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542171A (en) * | 2013-10-23 | 2014-01-29 | 国家电网公司 | Special tool for replacing rubber ring of oil drain valve of transformer |
| CN103542171B (en) * | 2013-10-23 | 2015-11-18 | 国家电网公司 | Transformer body fuel outlet valve rubber circle changes special tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |