CN203554217U - Dummy shaft for generator sealing tile scraping - Google Patents
Dummy shaft for generator sealing tile scraping Download PDFInfo
- Publication number
- CN203554217U CN203554217U CN201320736000.9U CN201320736000U CN203554217U CN 203554217 U CN203554217 U CN 203554217U CN 201320736000 U CN201320736000 U CN 201320736000U CN 203554217 U CN203554217 U CN 203554217U
- Authority
- CN
- China
- Prior art keywords
- shaft
- shoulder portion
- shaft part
- bearing bush
- supporting shaft
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 72
- 238000007790 scraping Methods 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WVBBLATZSOLERT-UHFFFAOYSA-N gold tungsten Chemical compound [W].[Au] WVBBLATZSOLERT-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a dummy shaft for generator sealing tile scraping. The dummy shaft comprises supporting shaft sections for sleeving a generator sealing tile for scraping. The dummy shaft preferably comprises a first supporting shaft section (1), a second supporting shaft section (2) and a shaft shoulder portion (3). The side surface (D) of the shaft shoulder portion which is close to the supporting shaft sections is vertical to the central axis (OO') of the dummy shaft. The side surface of the generator sealing tile sleeved onto the supporting shaft sections can be pressed against the side surface of the shaft shoulder portion. The diameter of the first supporting shaft section (1) is the same as the diameter of a generator shaft matched with the generator sealing tile. The diameter of the second supporting shaft section (2) is the same as the inner diameter of the generator sealing tile in the largest installation gap size state. According to the dummy shaft, by arranging the supporting shaft sections, the sealing tile does not need to be disassembled for scraping and then assembled, so that the scraping efficiency can be improved. Moreover, the sealing tile can be pressed against the shaft shoulder portions designed on the dummy shaft, so the advantage of accurate assembly can be realized so as to realize the advantage of higher grinding accuracy.
Description
Technical field
The utility model relates to a kind of aftermarket attachment of generator, particularly, relates to a kind of for generator sealing bearing bush being installed to carry out the dummy shaft of scraping.
Background technology
In high-rating generator, generator sealing bearing bush (abbreviation sealing bearing bush) after the operation through some cycles, sealing bearing bush tungsten gold surface wear and need carry out scraping.Before scraping, need by sealing bearing bush radially faying face take apart, namely the sealing bearing bush of full circle shape is splitted into two to semicircle, to disassemble from generator shaft, is then assembled on axle journal and grinds again, but such operating efficiency is very low.And can not guarantee perpendicularity while grinding, and easily cause scraping deviation, affect sealing bearing bush gap and contact area.Even, in dismounting and assembling process, sealing bearing bush also easily comes off and causes device damage and personal injury.
Utility model content
The purpose of this utility model is to provide a kind of generator sealing bearing bush scraping dummy shaft, to improve the scraping efficiency of sealing bearing bush.
For achieving the above object, the invention provides a kind of generator sealing bearing bush scraping dummy shaft, on this dummy shaft, comprise for generator sealing bearing bush is set with thereon to carry out the supporting shaft part of scraping.
Preferably, this dummy shaft also comprises shaft shoulder portion, the lateral vertical of the close described supporting shaft part of this shaft shoulder portion is in the central axis of described dummy shaft, and the side that is sleeved on the described generator sealing bearing bush on described supporting shaft part can be resisted against on the described side of described shaft shoulder portion.
Preferably, described supporting shaft part comprises the first supporting shaft part and the second supporting shaft part, the diameter of the generator shaft that the diameter of described the first supporting shaft part matches with described generator sealing bearing bush is identical, internal diameter under described the second supporting diameter of shaft part and the maximum assemblage gap size state of described generator sealing bearing bush is identical, internal diameter under described maximum assemblage gap size state is that the relative sealing tile of described generator sealing bearing bush has under maximum assemblage gap size state, the internal diameter of this generator sealing bearing bush.
Preferably, described the first supporting shaft part is arranged on a side of described shaft shoulder portion, and described the second supporting shaft part is arranged on the opposite side of described shaft shoulder portion.
Preferably, described the first supporting shaft part and the second supporting shaft part are arranged on the same side of described shaft shoulder portion, and described the first supporting shaft part, the second supporting shaft part and shaft shoulder portion set gradually along the central axial direction of described dummy shaft.
Preferably, the both sides of described shaft shoulder portion are provided with described the first supporting shaft part and the second supporting shaft part separately.
Preferably, the described first supporting shaft part and second of the described first supporting shaft part of described shaft shoulder portion one side and the second supporting shaft part and this shaft shoulder portion opposite side supports shaft part and is symmetrical arranged with respect to described shaft shoulder portion.
Preferably, the diameter of the described first supporting shaft part of described shaft shoulder portion one side is different with the diameter of the described first supporting shaft part of this shaft shoulder portion opposite side, and the diameter of the described second supporting shaft part of described shaft shoulder portion one side and this shaft shoulder portion opposite side described second to support the diameter of shaft part also different.
Preferably, on the mid portion of described shaft shoulder portion, be formed with concave part.
Pass through technique scheme, according to generator sealing bearing bush of the present utility model scraping, with being provided with in dummy shaft, be exclusively used in generator sealing bearing bush suit thereon to carry out the supporting shaft part of scraping, thereby carry out scraping after will sealing bearing bush not splitting, then assemble again, improved scraping efficiency.And sealing bearing bush can rest in the shaft shoulder portion designing on dummy shaft, assembling precisely so that grinding precision is higher.
Other feature and advantage of the present utility model partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation with dummy shaft according to the generator sealing bearing bush scraping of preferred implementation of the present utility model.
Description of reference numerals
1 first supporting shaft part 2 second supporting shaft parts
3 shaft shoulder portion 31 concave parts
D side OO ' central axis
Embodiment
Below, describe in detail with reference to the accompanying drawings according to execution mode of the present utility model.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use as " upper and lower, top, the end " normally for direction shown in the drawings or for each parts mutual alignment relationship description word vertically, on vertical or gravity direction.The noun of locality " left and right " is normally for two side directions of paper Width.
As shown in Figure 1, the utility model provides a kind of generator sealing bearing bush scraping dummy shaft, and this dummy shaft comprises supporting shaft part (being label 1 and the 2 indicated shaft part parts in Fig. 1), and generator sealing bearing bush is suitable for being sleeved on described supporting shaft part to carry out scraping.In the utility model, for carrying out more easily the scraping of sealing bearing bush, hereby designed and produced novel sealing watt scraping dummy shaft, without taking and assemble radially faying face apart, directly whole generator sealing bearing bush is sleeved on dummy shaft and carries out scraping, after test, can improve more than 8-10 times operating efficiency.
Wherein, this dummy shaft also preferably includes shaft shoulder portion 3, the side D near supporting shaft part of this shaft shoulder portion 3 is perpendicular to the central axis OO ' of dummy shaft, and it is upper to carry out scraping operation that the side that is sleeved on the generator sealing bearing bush on supporting shaft part can be resisted against the side D of shaft shoulder portion 3.Therefore, by making shaft shoulder portion 3, formed axially vertical stop surface, the perpendicularity while having guaranteed to grind, thus can greatly improve the scraping precision of sealing bearing bush, and then improved the security reliability of sealing bearing bush operation.
In addition, in present embodiment, also on dummy shaft, processed the size under the size of actual power arbor and the maximum radial gap state of sealing bearing bush, thereby directly scraping goes out sealing bearing bush gap, can imitate again the true diameter of axle for clearance measurement.Particularly, as shown in Figure 1, this supporting shaft part comprises the first supporting shaft part 1 and the second supporting shaft part 2, the diameter of the generator shaft that the diameter of the first supporting shaft part 1 matches with generator sealing bearing bush is identical, and the internal diameter under the second supporting diameter of shaft part 2 and the maximum assemblage gap size state of generator sealing bearing bush is identical.Wherein, the internal diameter under maximum assemblage gap size state is that the relative sealing tile of generator sealing bearing bush has under maximum assemblage gap size state, the internal diameter of this generator sealing bearing bush.
Selectively, the first supporting shaft part can be arranged on a side of shaft shoulder portion, and the second supporting shaft part is correspondingly arranged on the opposite side of shaft shoulder portion.Or, also the first supporting shaft part 1 and the second supporting shaft part 2 can be arranged on to the same side of shaft shoulder portion 3, and the first supporting shaft part 1, the second supporting shaft part 2 and shaft shoulder portion 3 set gradually along the central axis OO ' direction of dummy shaft, as shown in Figure 1.
In the present embodiment, preferably, the both sides of shaft shoulder portion 3 are provided with the first supporting shaft part 1 and the second supporting shaft part 2 separately.Thereby sealing bearing bush adaptability is arranged in the corresponding side of shaft shoulder portion 3 to carry out scraping.More preferably, first of shaft shoulder portion 3 one sides the supporting shaft part 1 and the second supporting shaft part 2 are symmetrical arranged with respect to shaft shoulder portion with the first supporting shaft part 1 and the second supporting shaft part 2 of these shaft shoulder portion 3 opposite sides.Stressed more balanced and reasonable while making simultaneously sealing bearing bush to be installed in the both sides of shaft shoulder portion 3, dummy shaft is more attractive in appearance.And, for being adapted to the scraping of the sealing bearing bush of different inner diameters, can make the diameter of the first supporting shaft part 1 of shaft shoulder portion 3 one sides different with the diameter of the first supporting shaft part 1 of these shaft shoulder portion 3 opposite sides, and the diameter of the diameter of the second supporting shaft part 2 of shaft shoulder portion 3 one sides and the second supporting shaft part 2 of these shaft shoulder portion 3 opposite sides is also different.When the sealing bearing bush of different inner diameters is installed, adaptability selects to be arranged on a corresponding side of shaft shoulder portion 3.
In addition, in order to reduce the quality of dummy shaft and to be convenient to support, install or grip, also can will on the mid portion of shaft shoulder portion 3, design concave part 31, as shown in Figure 1.
To sum up, by design consideration dummy shaft of the present utility model, for generator sealing bearing bush, without taking and assemble radially faying face apart, directly sealing bearing bush is sleeved on dummy shaft and can carries out scraping, greatly improved scraping operating efficiency; And make axially vertical stop surface, the perpendicularity while having guaranteed to grind, has improved sealing bearing bush scraping precision; Also can on dummy shaft, process actual generator shaft size and sealing bearing bush maximum radial gap size, directly scraping goes out sealing bearing bush gap, can imitate again the true diameter of axle for clearance measurement.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection range of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, between various execution mode of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. a generator sealing bearing bush scraping dummy shaft, is characterized in that, comprises for generator sealing bearing bush is set with thereon to carry out the supporting shaft part of scraping on this dummy shaft.
2. generator sealing bearing bush scraping dummy shaft according to claim 1, it is characterized in that, this dummy shaft also comprises shaft shoulder portion (3), the side (D) of the close described supporting shaft part of this shaft shoulder portion (3) is perpendicular to the central axis of described dummy shaft (OO '), and the side that is sleeved on the described generator sealing bearing bush on described supporting shaft part can be resisted against on the described side (D) of described shaft shoulder portion (3).
3. generator sealing bearing bush scraping dummy shaft according to claim 2, it is characterized in that, described supporting shaft part comprises the first supporting shaft part (1) and the second supporting shaft part (2), the diameter of the generator shaft that the diameter of described the first supporting shaft part (1) matches with described generator sealing bearing bush is identical, internal diameter under described second diameter of supporting shaft part (2) and the maximum assemblage gap size state of described generator sealing bearing bush is identical, internal diameter under described maximum assemblage gap size state is that the relative sealing tile of described generator sealing bearing bush has under maximum assemblage gap size state, the internal diameter of this generator sealing bearing bush.
4. generator sealing bearing bush scraping dummy shaft according to claim 3, is characterized in that, described the first supporting shaft part (1) is arranged on a side of described shaft shoulder portion (3), and described the second supporting shaft part (2) is arranged on the opposite side of described shaft shoulder portion (3).
5. generator sealing bearing bush scraping dummy shaft according to claim 3, it is characterized in that, described the first supporting shaft part (1) and the second supporting shaft part (2) are arranged on the same side of described shaft shoulder portion (3), and described the first supporting shaft part (1), second supports shaft part (2) and shaft shoulder portion (3) and sets gradually along the central axis of described dummy shaft (OO ') direction.
6. generator sealing bearing bush scraping dummy shaft according to claim 5, is characterized in that, the both sides of described shaft shoulder portion (3) are provided with described the first supporting shaft part (1) and the second supporting shaft part (2) separately.
7. generator sealing bearing bush scraping dummy shaft according to claim 6, it is characterized in that, the described first supporting shaft part (1) and second of the described first supporting shaft part (1) of described shaft shoulder portion (3) one sides and the second supporting shaft part (2) and this shaft shoulder portion (3) opposite side supports shaft part (2) and is symmetrical arranged with respect to described shaft shoulder portion.
8. generator sealing bearing bush scraping dummy shaft according to claim 6, it is characterized in that, the diameter of the described first supporting shaft part (1) of described shaft shoulder portion (3) one sides is different with the diameter of the described first supporting shaft part (1) of this shaft shoulder portion (3) opposite side, and described second the supporting described second of the diameter of shaft part (2) and this shaft shoulder portion (3) opposite side to support the diameter of shaft part (2) also different of described shaft shoulder portion (3) one sides.
9. according to the generator sealing bearing bush scraping dummy shaft described in any one in claim 2 to 7, it is characterized in that, on the mid portion of described shaft shoulder portion (3), be formed with concave part (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736000.9U CN203554217U (en) | 2013-11-19 | 2013-11-19 | Dummy shaft for generator sealing tile scraping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736000.9U CN203554217U (en) | 2013-11-19 | 2013-11-19 | Dummy shaft for generator sealing tile scraping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203554217U true CN203554217U (en) | 2014-04-16 |
Family
ID=50472278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320736000.9U Expired - Lifetime CN203554217U (en) | 2013-11-19 | 2013-11-19 | Dummy shaft for generator sealing tile scraping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203554217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116137478A (en) * | 2021-11-17 | 2023-05-19 | 福建福清核电有限公司 | Measurement and calculation method for gap between sealing tiles of generator in nuclear power plant |
-
2013
- 2013-11-19 CN CN201320736000.9U patent/CN203554217U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116137478A (en) * | 2021-11-17 | 2023-05-19 | 福建福清核电有限公司 | Measurement and calculation method for gap between sealing tiles of generator in nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |