CN205415503U - Transformer bushing's fastening tool with adjustable - Google Patents
Transformer bushing's fastening tool with adjustable Download PDFInfo
- Publication number
- CN205415503U CN205415503U CN201620234984.4U CN201620234984U CN205415503U CN 205415503 U CN205415503 U CN 205415503U CN 201620234984 U CN201620234984 U CN 201620234984U CN 205415503 U CN205415503 U CN 205415503U
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- chain pin
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- transformer
- carrier bar
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Abstract
The utility model discloses a transformer bushing's fastening tool with adjustable, it includes handle (1) its characterized in that, and the inside and outside both sides of handle (1) tip are passed through chain pin (5) and are connected one first link joint (2) respectively, and the one end of bar connecting rods (3) is connected through chain pin (5) in two inside and outside first link joint (2), and one second link joint (6) are connected through chain pin (5) respectively in the inside and outside both sides of the other end of bar connecting rod (3), and hook -type buckle (4) is connected through chain pin (5) in two inside and outside second link joint (6), the utility model discloses simple structure, convenient to use, low cost, can be fit for different model nuts.
Description
Technical field:
This utility model relates to the fastening instrument of a kind of adjustable variable-pressure device sleeve pipe, is widely used in reinforcing and the maintenance of power system transformer sleeve pipe, belongs to substation equipment maintenance and repair site technology field.
Background technology:
nullBushing shell for transformer is that inside transformer is high、Low-voltage lead guides to the insulated sleeve outside fuel tank，Serve not only as the insulation against ground that goes between，And it is responsible for the effect of anchor leg，Lead-in wire in bushing shell for transformer is one of current-carrying original paper simultaneously，At Transformer，Pass through load current for a long time，Short circuit current is passed through when transformator short-circuited outside，Owing to the difference of load current and the impact of short circuit current all can cause wire temperature to change，According to principle of expanding with heat and contracting with cold，Bushing shell for transformer is after long-play，Sealing gasket can produce gap with the clamp nut of cannula end，Cause sleeve pipe leakage of oil，On the other hand，Owing to the alternate of temperature in four seasons also results in bushing shell for transformer, above-mentioned situation occurs，Therefore，Bushing shell for transformer sufficient mechanical strength to be had and heat stability，Also require good seal performance、Highly versatile and be easy to maintenance，And want reasonable arrangement to have a power failure to plan，Periodically carry out reinforcing and the maintenance work of bushing shell for transformer.
For meeting bushing shell for transformer good seal performance, highly versatile and being easy to the needs of maintenance, in the design of sleeve pipe 8, the most general employing self-locking nut 7 fastens cannula exit, compared with common nut, self-locking nut can produce bigger locking frictional force, has reliable vibrationproof, anti-loosening property, but owing to design needs, its structure, for be uniformly arranged four breach in rounded outer surface, is used for fastening and dismantle (seeing Fig. 1, Fig. 2).
Particularity due to self-locking nut design, its fastening, bigger moment it is required for during dismounting, in the reinforcing and maintenance of bushing shell for transformer, typically require and use special hook-shaped spanner, but the self-locking nut model used due to different sleeve pipes is different, operating personnel needs to be equipped with the hook-shaped spanner of Multiple Type, in addition transformator top working space is less, make troubles for service work, have a strong impact on work efficiency, and use adjustable pipe wrench or common wrench that nut can cause mechanical damage, affect nut service life, hide some dangers for for equipment safe and stable operation.
Utility model content:
The purpose of this utility model be to overcome the deficiency of above-mentioned prior art and provide a kind of simple in construction, easy to use, with low cost, the fastening instrument of the adjustable variable-pressure device sleeve pipe of different model nut can be suitable for.
The purpose of this utility model can be reached by following measure: the fastening instrument of a kind of adjustable variable-pressure device sleeve pipe, it is characterized in that it includes handle, one first carrier bar is connected respectively by chain pin inside and outside handle end, inside and outside two the first carrier bars connect one end of bar shaped connecting rod by chain pin, connecting one second carrier bar by chain pin respectively inside and outside the other end of bar shaped connecting rod, inside and outside two the second carrier bars connect hook-type buckle by chain pin.
In order to realize the purpose of this utility model further, described handle end, the first carrier bar, the second carrier bar and hook-type buckle form semicircular arc-shaped.
This utility model can produce following good effect compared with the prior art: this utility model can effectively solve to carry the problem that the instrument of Multiple Type just can carry out bushing shell for transformer maintenance work, avoid the situation that entrained instrument is not inconsistent with nut model, particularly when keeping in repair miniature transformer, effectively solve working space narrow, the problem of replacing instrument inconvenience, improves work efficiency.
It has:
1. simple in construction, with low cost.Using general carbon tool steel in machine tool manufacture is main material, can use, simple in construction after making all parts after assembling link by carrier bar, easy to maintenance.
The most easy to use, work efficiency is high.Due to the distinctive carrier bar of this instrument, chain pin link design, only can need to carry this instrument when keeping in repair bushing shell for transformer can complete self-locking nut fastening and dismantlement work for the self-locking nut of different model.
The most practical, promoted extension is wide.Owing to this tool making process is simple, applied widely, and temporarily without this type of instrument on market, therefore have the potentiality promoted in power system, to save the time of bushing shell for transformer maintenance, improve production efficiency.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of existing self-locking nut；
Fig. 2 is the use state diagram of self-locking nut and bushing shell for transformer；
Fig. 3 is structural representation of the present utility model；
Fig. 4 is the side view of carrier bar part of the present utility model.
Detailed description of the invention:
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is elaborated:
Embodiment: the fastening instrument (seeing Fig. 3, Fig. 4) of a kind of adjustable variable-pressure device sleeve pipe, it includes handle 1, one first carrier bar 2 is connected respectively by chain pin 5 inside and outside handle 1 end, inside and outside two the first carrier bars 2 connect one end of bar shaped connecting rod 3 by chain pin 5, one second carrier bar 6 is connected by chain pin 5 respectively inside and outside the other end of bar shaped connecting rod 3, inside and outside two the second carrier bars 6 connect hook-type buckle 4 by chain pin 5, and handle 1 end, first carrier bar the 2, second carrier bar 6 and hook-type buckle 4 form semicircular arc-shaped.Hook-type buckle 4, handle 1, bar shaped connecting rod the 3, first carrier bar the 2, second carrier bar 6 are made up of carbon tool steel.
During use, hook-type buckle 4 is buckled in any indentation, there of self-locking nut, adjusts carrier bar, bar shaped connecting rod 3 position, make handle 1 be positioned at hook-type buckle 4 symmetric position, withstand self-locking nut breach and can carry out the fastening of nut, dismantlement work.
Claims (2)
1. the fastening instrument of an adjustable variable-pressure device sleeve pipe, it is characterized in that it includes handle (1), one first carrier bar (2) is connected respectively by chain pin (5) inside and outside handle (1) end, inside and outside two the first carrier bars (2) connect one end of bar shaped connecting rod (3) by chain pin (5), connecting one second carrier bar (6) by chain pin (5) respectively inside and outside the other end of bar shaped connecting rod (3), inside and outside two the second carrier bars (6) connect hook-type buckle (4) by chain pin (5).
The fastening instrument of a kind of adjustable variable-pressure device sleeve pipe the most according to claim 1, it is characterised in that described handle (1) end, the first carrier bar (2), the second carrier bar (6) and hook-type buckle (4) form semicircular arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234984.4U CN205415503U (en) | 2016-03-25 | 2016-03-25 | Transformer bushing's fastening tool with adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234984.4U CN205415503U (en) | 2016-03-25 | 2016-03-25 | Transformer bushing's fastening tool with adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205415503U true CN205415503U (en) | 2016-08-03 |
Family
ID=56549182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620234984.4U Expired - Fee Related CN205415503U (en) | 2016-03-25 | 2016-03-25 | Transformer bushing's fastening tool with adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205415503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237393A (en) * | 2016-12-27 | 2018-07-03 | 中国航发商用航空发动机有限责任公司 | Nut tightening device |
| CN112589408A (en) * | 2020-12-11 | 2021-04-02 | 北京航空航天大学 | Automatic tightening device and method for blind cavity nut of aero-engine compressor rotor |
-
2016
- 2016-03-25 CN CN201620234984.4U patent/CN205415503U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237393A (en) * | 2016-12-27 | 2018-07-03 | 中国航发商用航空发动机有限责任公司 | Nut tightening device |
| CN108237393B (en) * | 2016-12-27 | 2019-08-27 | 中国航发商用航空发动机有限责任公司 | Nut tightening device |
| CN112589408A (en) * | 2020-12-11 | 2021-04-02 | 北京航空航天大学 | Automatic tightening device and method for blind cavity nut of aero-engine compressor rotor |
| CN112589408B (en) * | 2020-12-11 | 2022-05-13 | 北京航空航天大学 | Automatic tightening device and method for blind cavity nut of aero-engine compressor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170325 |