CN206164305U - Inspection fastening tool of vertical hydrogenerator punching screw rod - Google Patents
Inspection fastening tool of vertical hydrogenerator punching screw rod Download PDFInfo
- Publication number
- CN206164305U CN206164305U CN201621124945.5U CN201621124945U CN206164305U CN 206164305 U CN206164305 U CN 206164305U CN 201621124945 U CN201621124945 U CN 201621124945U CN 206164305 U CN206164305 U CN 206164305U
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- China
- Prior art keywords
- screw rod
- extension bar
- nut
- sleeve
- fastening tool
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Abstract
The utility model discloses an inspection fastening tool of vertical hydrogenerator punching screw rod, its characterized in that should inspect that fastening tool comprised extension bar (1), nut (3) and sleeve (4), and sleeve (4) are connected in the one end of extension bar (1), and nut (3) link firmly in the other end of extension bar (1). The utility model discloses an extension bar matees in coordination rather than last nut and sleeve, and the end nut has moved on to the below of two stator bar support frames under the stator core punching screw rod that will fasten in other words, therefore has not only increased the rotary space of operating, has made things convenient for the operation, has improved operating condition greatly, has just reduced the manpower, still makes work efficiency obtain the promotion.
Description
Technical field
The utility model belongs to generator inspection maintenance fastening tool technical field, and in particular to a kind of vertical water turbine generates electricity
The inspection fastening tool of machine punching screw rod.
Background technology
Stator core punching screw rod is the important component part of vertical hydrogenerator stator, in vertical hydrogenerator
The stator core punching screw rod of annular arrangement is up to 220, and the stator core of each of which root stator core punching screw rod is all
It is through on screw rod, two ends with nut are fastened and compressed respectively again, to prevent stator core from loosening phenomenon is produced in running.
But, through long-play, the silicon steel sheet of stator core will be in factors such as heating power, vibrations for the stator of vertical hydrogenerator
Under the influence of, loosening phenomenon inevitably occurs, and the loosening of stator iron core silicon steel sheet not only results in iron loss increase, it is fixed to make
Sub- iron core local produces superheating phenomenon, and can accelerate the aging of ferromagnetic material, reduction of service life.
In order to the silicon steel sheet for preventing stator core loosens, will be to generator unit stator during annual vertical hydrogenerator light maintenance
The compaction degree of iron core punching screw rod is checked, to find early, fastening in time is solved.Due to each stator core punching
The position of screw rod is located between each two stator bar bracing frame (as shown in Figure 1, 2), rotary space very little, operation
It is inconvenient, the reinforcing for adding fastening stator core punching screw rod is larger, needs 680N/m, therefore the inspection fastening side for taking at present
Formula needs four people, and jointly collaboration is carried out, i.e.,：One people blocks nut in the upper end of stator core punching screw rod, in case rotation stop is dynamic,
Other three people respectively enters the adjacent inspection import in stator core punching screw rod bottom, wherein a middle people is responsible for lifting pulling
Hand simultaneously blocks nut, and the people positioned at the left and right sides is responsible for push-and-pull spanner and can be only achieved the operation for checking clamp nut.And stator
The space of the inspection import of iron core punching screw rod bottom is very narrow, and three people can only roll up and inside carry out operation,
Work under hard conditions, operating efficiency is relatively low.
Utility model content
The utility model is the problem existed for prior art, there is provided a kind of inspection of vertical hydrogenerator punching screw rod
Look into fastening tool.
The utility model provides a kind of inspection fastening tool of hydrogenerator punching screw rod, it is characterised in that the inspection is tight
Gu instrument is made up of extension bar, nut and sleeve, in one end of extension bar, nut is fixed on the another of extension bar to sleeve connection
End.
Check that the extension bar described in fastening tool is a straight-bar above, the end of its one end is provided with a limited step, limits
The section of termination is square on the outside of the step of position, and a through hole is provided with symmetrical two sides, wherein laying a ball bullet
Spring lock pin.
Above the section of the sleeve lower half described in inspection fastening tool is square, and its size is with extension bar in pros
The termination matching of shape, the cross sectional shape and internal diameter of the sleeve first half are matched with the bottom nut of stator core punching screw rod.
When using, a people lives in the nut of end in the upper end fork spanner fixing card of stator core punching screw rod, separately
One people (i.e. outside wind-tunnel platform), torque spanner is first stuck in lengthening outside the inspection import of stator core punching screw rod bottom
On the nut of bar lower end, then the utility model is checked into that sleeve one end of fastening tool puts in, is enclosed within the nut of bottom,
Can carry out checking tightening operation.
Compared with prior art, the invention has the advantages that：
1st, an extension bar is designed with the inspection fastening tool provided due to the utility model, equivalent to need to be tightly when using
Solid stator core punching screw rod under end nut have been moved to the lower section of two stator bar bracing frames, thus not only increase operation
Rotary space, facilitates operation, and inspection personnel substantially improves operating condition without rolling up in narrow space operation.
2nd, check fastening tool by the extension bar of design and connected thereon sleeve, spiral shell due to what the utility model was provided
Mother coordinates, and only needs two people to can be carried out checking tightening operation, thus not only greatly reduces manpower, and also obtains operating efficiency
To further lifting.
3rd, the utility model simple structure, handling ease is easy to use.
Description of the drawings
Fig. 1 is the locus schematic diagram of the stator core punching screw rod of vertical hydrogenerator；
Fig. 2 is the A-A of stator core punching screw rod bottom in Fig. 1 to structure enlarged diagram；
Fig. 3 is the structure and annexation schematic diagram of extension bar and nut in the utility model；
Fig. 4 is the cross section structure diagram of the utility model middle sleeve；
Fig. 5 is when the utility model is assembled and inspection is fastened and stator core punching screw rod bottom annexation schematic diagram.
Wherein：1- extension bars, 2- ball spring lock pins, 3- nuts, 4- sleeves, 5- stator rod brackets, 6- punching screw rods, 7-
Punching screw rod bottom nut.
Specific embodiment
The utility model is specifically described below by drawings and Examples, it is necessary to it is pointed out here that be following reality
Apply example and be served only for that the utility model is described in further detail, it is impossible to be interpreted as the restriction to the utility model protection domain, the neck
The person skilled in the art in domain makes some nonessential modifications and adaptations to the utility model according to above-mentioned the utility model content,
Still fall within the utility model protection domain.
Embodiment
The present embodiment provide hydrogenerator punching screw rod inspection fastening tool, its structure as shown in Figure 3,4, specifically
It is made up of extension bar 1, nut 3 and sleeve 4, sleeve 4 is connected to one end of extension bar 1, nut 3 is fixed on the another of extension bar 1
End, sees Fig. 5.
Wherein described extension bar 1 is a straight-bar, and the end of its one end is provided with a limited step, termination on the outside of limited step
Section it is square, and a through hole is provided with symmetrical two sides, wherein laying a ball spring lock pin 2；This enforcement
Nut 3 described in example is the other end that extension bar 1 is fixed on by welding；The section of the described lower half of sleeve 4 is square,
Its size termination square with extension bar 1 matches, and is integrated by the clamping of ball spring lock pin 2 of the termination of extension bar 1,
The cross sectional shape and internal diameter of the first half of sleeve 4 is matched with the bottom nut 7 of stator core punching screw rod 6.Can keep away when using
Open the 5 pairs of restrictions for checking fastening space of stator rod bracket.
Claims (3)
1. a kind of inspection fastening tool of hydrogenerator punching screw rod, it is characterised in that the inspection fastening tool is by extension bar
(1), nut (3) and sleeve (4) are constituted, and sleeve (4) is connected to one end of extension bar (1), and nut (3) is fixed on extension bar (1)
The other end.
2. the inspection fastening tool of hydrogenerator punching screw rod according to claim 1, it is characterised in that check fastening
Extension bar (1) described in instrument is a straight-bar, and the end of its one end is provided with a limited step, and termination cuts on the outside of limited step
Face is square, and a through hole is provided with symmetrical two sides, wherein laying a ball spring lock pin (2).
3. the inspection fastening tool of hydrogenerator punching screw rod according to claim 1 and 2, it is characterised in that check tight
Gu the section of sleeve (4) lower half described in instrument is square, its size and the square termination of extension bar (1)
Match somebody with somebody, the cross sectional shape and internal diameter of sleeve (4) first half are matched with the bottom nut (7) of stator core punching screw rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621124945.5U CN206164305U (en) | 2016-10-14 | 2016-10-14 | Inspection fastening tool of vertical hydrogenerator punching screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621124945.5U CN206164305U (en) | 2016-10-14 | 2016-10-14 | Inspection fastening tool of vertical hydrogenerator punching screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164305U true CN206164305U (en) | 2017-05-10 |
Family
ID=58654122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621124945.5U Active CN206164305U (en) | 2016-10-14 | 2016-10-14 | Inspection fastening tool of vertical hydrogenerator punching screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705985A (en) * | 2022-03-31 | 2022-07-05 | 东方电气集团东方电机有限公司 | Stator core compression state monitoring device, method and equipment |
| CN114779073A (en) * | 2022-03-31 | 2022-07-22 | 东方电气集团东方电机有限公司 | Stator core compression state fault detection device, detection method, generator set monitoring system and computer readable storage medium |
-
2016
- 2016-10-14 CN CN201621124945.5U patent/CN206164305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705985A (en) * | 2022-03-31 | 2022-07-05 | 东方电气集团东方电机有限公司 | Stator core compression state monitoring device, method and equipment |
| CN114779073A (en) * | 2022-03-31 | 2022-07-22 | 东方电气集团东方电机有限公司 | Stator core compression state fault detection device, detection method, generator set monitoring system and computer readable storage medium |
| CN114705985B (en) * | 2022-03-31 | 2023-10-13 | 东方电气集团东方电机有限公司 | Stator core compression state monitoring device, monitoring method and monitoring equipment |
| CN114779073B (en) * | 2022-03-31 | 2023-10-13 | 东方电气集团东方电机有限公司 | Stator core compression state fault detection device, detection method, generator set monitoring system and computer readable storage medium |
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