CN212265698U - Guide vane shaft middle shaft sleeve dismantling tool - Google Patents
Guide vane shaft middle shaft sleeve dismantling tool Download PDFInfo
- Publication number
- CN212265698U CN212265698U CN202020898573.1U CN202020898573U CN212265698U CN 212265698 U CN212265698 U CN 212265698U CN 202020898573 U CN202020898573 U CN 202020898573U CN 212265698 U CN212265698 U CN 212265698U
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- China
- Prior art keywords
- cylinder body
- shaft sleeve
- barrel body
- guide vane
- ejection
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 2
- 241000737263 Lygodium Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a guide vane shaft middle shaft sleeve dismantling tool, which comprises an embracing cylinder body (1), wherein the embracing cylinder body (1) is formed by detachably connecting an upper cylinder body and a lower cylinder body, the end parts of the upper cylinder body and the lower cylinder body are respectively provided with an upper cover plate (2), the upper cover plate (2) extends to the inner sides of the upper cylinder body and the lower cylinder body and is connected with an inner ring body (9), a plurality of through holes (3) are distributed on the upper cover plate (2) in an annular manner, and a first ejection mechanism connected with a middle shaft sleeve is arranged in each through hole (3); the side walls of the upper barrel body and the lower barrel body are respectively provided with a placing opening (4), a second ejection mechanism (5) is arranged in the placing opening (4), and an ejector block (6) which is respectively positioned on the outer sides of the upper barrel body and the lower barrel body is arranged above the second ejection mechanism (5). The utility model has the characteristics of demolish efficient, demolish the instrument and conveniently carry.
Description
Technical Field
The utility model relates to a hydraulic turbine demolition tool, especially a guide vane shaft middle shaft sleeve demolition tool.
Background
In the process of overhauling a water turbine in a hydropower station, a middle shaft sleeve of a guide vane shaft of the hydropower station is frequently required to be detached so as to install a sealing element of the middle shaft sleeve. The middle shaft sleeve is sleeved outside the guide vane shaft after being installed, and an upper shaft sleeve which is also connected with the guide vane shaft is arranged above the middle shaft sleeve for sealing; the existing method for removing the middle shaft sleeve needs to remove the upper shaft sleeve firstly, then the lower ends of a plurality of round steel are connected to the bearing bush of the middle shaft sleeve in a threaded manner, and the upper ends of the round steel are connected with a steel plate; and finally, mounting a hydraulic jack on the upper shaft sleeve foundation base, and pushing the steel plate through the jack to integrally pull out the middle shaft sleeve. However, in this disassembling method, the upper shaft sleeve needs to be disassembled first, and then the centering shaft sleeve can be disassembled, so that the disassembling efficiency of the centering shaft sleeve is reduced. On the other hand, the distance between the upper shaft sleeve and the middle shaft sleeve is longer, so that the length of round steel used for dismantling is prolonged, and the round steel is inconvenient for a maintainer to carry the round steel in and out of the machine set. Therefore, the existing method for removing the centering shaft sleeve has the defects of low removal efficiency and difficulty in carrying a removal tool.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shaft sleeve demolishs instrument in guide vane shaft. It has the characteristics of high demolition efficiency and convenient carrying of the demolition tool.
The technical scheme of the utility model: a guide vane shaft middle shaft sleeve dismantling tool comprises an encircling cylinder body, wherein the encircling cylinder body is formed by detachably connecting an upper cylinder body and a lower cylinder body, the end parts of the upper cylinder body and the lower cylinder body are respectively provided with an upper cover plate, the upper cover plates extend to the inner sides of the upper cylinder body and the lower cylinder body and are connected with an inner ring body, a plurality of through holes are annularly distributed on the upper cover plates, and a first ejection mechanism connected with a middle shaft sleeve is arranged in each through hole; the side walls of the upper barrel body and the lower barrel body are respectively provided with a placing opening, a second ejection mechanism is arranged in the placing openings, and ejector blocks respectively located on the outer sides of the upper barrel body and the lower barrel body are arranged above the second ejection mechanism.
In the removing tool for the middle shaft sleeve of the guide vane shaft, the first ejection mechanism comprises an ejection bolt, the lower end of the ejection bolt is connected with the middle shaft sleeve, the upper end of the ejection bolt extends above the through hole, and the middle part of the ejection bolt is connected with a nut positioned between the upper cover plate and the middle shaft sleeve.
In the aforementioned tool for removing the shaft sleeve in the guide vane shaft, the second ejection mechanism is a jack, and a rod head of the jack is attached to the ejector block.
In the tool for removing the shaft sleeve in the guide vane shaft, one side of the top block is welded with the outer wall of the upper cylinder or the outer wall of the lower cylinder.
In the tool for removing the shaft sleeve in the guide vane shaft, the upper cylinder body and the lower cylinder body are connected with each other through the cohesion bolt.
Compared with the prior art, the utility model discloses a through the cohesion barrel that can dismantle the connection and form by upper cylinder body and lower cylinder body, can fix on the guide vane axle above the middle shaft sleeve through cohesion, through the cooperation of first ejection mechanism and second ejection mechanism, then can make second ejection mechanism lift up through pushing away kicking block centering shaft sleeve, thereby make the utility model discloses can realize dismantling of centering shaft sleeve under the condition that need not to dismantle the upper shaft sleeve, improve the utility model discloses demolish efficiency; the space between the upper cover plate and the upper shaft sleeve can be effectively shortened through the structure of the utility model, so that the length of the ejection bolt for connection can be correspondingly shortened, thereby facilitating the carrying of maintainers; through the locking barrel body locked outside the guide vane shaft, the utility model can move outwards along the axial direction of the guide vane shaft after pushing, thereby effectively avoiding the deviation or the locking of the extraction angle of the middle shaft sleeve and improving the dismantling stability of the utility model; through the kicking block and the cooperation of placing the mouth, then can make the jack reduce the skew of thrust when pushing away, and improve the utility model discloses structural strength at the summit position, thereby further improve the utility model discloses a demolish stability. Therefore, the utility model has the characteristics of demolish efficient, demolish the instrument and conveniently carry.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an external view of the embracing cylinder body.
The labels in the figures are: 1-cohesive cylinder body, 2-upper cover plate, 3-through hole, 4-placing opening, 5-second ejection mechanism, 6-ejector block, 7-ejection bolt, 8-nut and 9-inner ring body.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A guide vane shaft middle shaft sleeve dismantling tool is formed as shown in figure 1 and comprises a cohesive barrel body 1, wherein the cohesive barrel body 1 is formed by detachably connecting an upper barrel body and a lower barrel body, the end parts of the upper barrel body and the lower barrel body are respectively provided with an upper cover plate 2, the end surfaces of the upper cover plates 2 on two sides of the upper barrel body and the lower barrel body are mutually attached after the upper barrel body and the lower barrel body are connected, the upper cover plates 2 extend to the inner sides of the upper barrel body and the lower barrel body and are connected with inner ring bodies 9, the inner diameters of the inner ring bodies 9 on two sides after the connection are slightly larger than the diameter of a guide vane shaft, a plurality of through holes 3 are annularly distributed on the upper; the side walls of the upper barrel body and the lower barrel body are respectively provided with a placing opening 4, a second ejection mechanism 5 is arranged in the placing opening 4, and an ejector block 6 respectively located on the outer sides of the upper barrel body and the lower barrel body is arranged above the second ejection mechanism 5.
The first ejection mechanism comprises an ejection bolt 7, the lower end of the ejection bolt 7 is connected with the middle shaft sleeve, the upper end of the ejection bolt 7 extends to the upper part of the through hole 3, and the middle part of the ejection bolt 7 is connected with a nut 8 positioned between the upper cover plate 2 and the middle shaft sleeve; the jacking blocks 6 and the jacking bolts 7 are arranged in a staggered way at 45 degrees along the circumferential direction.
The second ejection mechanism 5 is a jack, and the jack can be placed in an offset structure or an inclined manner by using a rod head, so that the bottom of the jack and a bearing bush of the middle shaft sleeve are staggered, and the rod head of the jack is attached to the ejector block 6.
One side of the top block 6 is welded with the outer wall of the upper barrel body or the lower barrel body.
Go up between barrel and the lower barrel through cohesion bolt interconnect, cohesion bolt sets up on kicking block 6.
The utility model discloses a theory of operation: the utility model discloses when using, earlier place last barrel and lower barrel respectively in guide vane axle both sides to form cohesion barrel 1 through cohesion bolt interconnect, cohesion barrel 1's interior ring body cover is established in the guide vane axle outside. After the embracing cylinder body 1 is connected, the lower end of the embracing cylinder body 1 is arranged on a plane outside the middle shaft sleeve, the ejection bolt 7 penetrates through the through hole 3 to be connected with a bearing bush of the middle shaft sleeve, and then the nut 8 is screwed down to enable the first ejection mechanism to clamp the upper cover plate 2, so that the embracing cylinder body 1 and the middle shaft sleeve are fixed with each other. After the first ejection mechanism is installed, the bottom of the jack is placed on an installation plane outside the middle shaft sleeve, the middle of the jack is arranged in the placing opening 4, and the head of the thousand golden jacks is attached to the ejector block 6; and then, pushing the embracing cylinder body 1 by using the top of the climbing fern to enable the middle shaft sleeve to be pulled out under the pushing action.
Claims (5)
1. The utility model provides a shaft sleeve demolishs instrument in guide vane shaft which characterized in that: the cylinder comprises a cylinder body (1), wherein the cylinder body (1) is formed by detachably connecting an upper cylinder body and a lower cylinder body, the end parts of the upper cylinder body and the lower cylinder body are respectively provided with an upper cover plate (2), the upper cover plates (2) extend to the inner sides of the upper cylinder body and the lower cylinder body and are connected with an inner ring body (9), a plurality of through holes (3) are annularly distributed on the upper cover plates (2), and first ejection mechanisms connected with a middle shaft sleeve are arranged in the through holes (3); the side walls of the upper barrel body and the lower barrel body are respectively provided with a placing opening (4), a second ejection mechanism (5) is arranged in the placing opening (4), and an ejector block (6) which is respectively positioned on the outer sides of the upper barrel body and the lower barrel body is arranged above the second ejection mechanism (5).
2. The guide vane shaft bushing removing tool according to claim 1, wherein: the first ejection mechanism comprises an ejection bolt (7), the lower end of the ejection bolt (7) is connected with the middle shaft sleeve, the upper end of the ejection bolt (7) extends to the position above the through hole (3), and the middle part of the ejection bolt (7) is connected with a nut (8) located between the upper cover plate (2) and the middle shaft sleeve.
3. The guide vane shaft bushing removing tool according to claim 1, wherein: the second ejection mechanism (5) is a jack, and a rod head of the jack is mutually attached to the ejector block (6).
4. The guide vane shaft bushing removing tool according to claim 1, wherein: one side of the top block (6) is welded with the outer wall of the upper barrel body or the lower barrel body.
5. The guide vane shaft bushing removing tool according to claim 1, wherein: the upper barrel body and the lower barrel body are connected with each other through the cohesive bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898573.1U CN212265698U (en) | 2020-05-25 | 2020-05-25 | Guide vane shaft middle shaft sleeve dismantling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898573.1U CN212265698U (en) | 2020-05-25 | 2020-05-25 | Guide vane shaft middle shaft sleeve dismantling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212265698U true CN212265698U (en) | 2021-01-01 |
Family
ID=73880958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020898573.1U Active CN212265698U (en) | 2020-05-25 | 2020-05-25 | Guide vane shaft middle shaft sleeve dismantling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212265698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618382A (en) * | 2021-09-06 | 2021-11-09 | 湖南南方通用航空发动机有限公司 | Spline shaft dismounting device |
-
2020
- 2020-05-25 CN CN202020898573.1U patent/CN212265698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618382A (en) * | 2021-09-06 | 2021-11-09 | 湖南南方通用航空发动机有限公司 | Spline shaft dismounting device |
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