CN219704067U - Special tool for dismantling sleeve in movable guide vane - Google Patents
Special tool for dismantling sleeve in movable guide vane Download PDFInfo
- Publication number
- CN219704067U CN219704067U CN202320547197.5U CN202320547197U CN219704067U CN 219704067 U CN219704067 U CN 219704067U CN 202320547197 U CN202320547197 U CN 202320547197U CN 219704067 U CN219704067 U CN 219704067U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- guide vane
- top ring
- movable guide
- special tool
- 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.)
- Active
Links
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The utility model provides a specialized tool is demolishd to sleeve in movable guide vane, includes about top ring, and every top ring inboard is connected with the sleeve can be dismantled, and every top ring outside is connected with the backing plate, and the backing plate lower extreme is through hydraulic jack. The special tool for removing the sleeve in the movable guide vane can improve the overhauling efficiency of the sleeve in the guide vane.
Description
Technical Field
The utility model relates to a hydraulic machine, in particular to a special tool for dismantling a sleeve in a movable guide vane.
Background
When the sleeve in the guide vane of the hydroelectric generating set leaks seriously, the sleeve in the guide vane needs to be removed for sealing replacement. At present, before the sleeve in the guide vane is dismounted, the guide vane crank arm and the guide vane upper sleeve are dismounted. The dismantling of the vane lever and the vane upper sleeve takes 3 workers to complete in 1 day.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a special tool for dismantling the sleeve in the movable guide vane, which not only can improve the overhauling efficiency of the sleeve in the guide vane, but also has a certain self-alignment function.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a specialized tool is demolishd to sleeve in movable guide vane, includes about top ring, and every top ring inboard is connected with the sleeve can be dismantled, and every top ring outside is connected with the backing plate, and the backing plate lower extreme is through hydraulic jack.
The outer side is equipped with the second through-hole on the top ring, and hold-down bolt downwards passes the second through-hole and with backing plate threaded connection, the cover has the dish spring on the hold-down bolt between top ring, the backing plate.
The disc springs on the compression bolts are multiple, and every two disc springs are arranged oppositely at one group of large opening ends.
And a gasket is sleeved on the pressing bolt, which is positioned outside the disc spring.
And horizontal measuring bubbles are arranged left and right on the top ring.
The special tool for removing the sleeve in the movable guide vane has the following technical effects:
1) The sleeve in the guide vane can be removed under the condition that the upper sleeve and the guide vane crank arm of the guide vane are not removed, so that the overhauling efficiency of the sleeve in the guide vane is improved.
2) The guide vane has a certain self-alignment function in the process of dismantling the sleeve in the guide vane; when the local blocking resistance of the sleeve in the guide vane is smaller, the guide vane can be automatically aligned, and the sleeve in the guide vane can be quickly pulled out. When the sleeve in the guide vane is severely rusted and the local blocking is serious, the abnormal blocking condition of the sleeve in the guide vane can be timely found, the lifting position of the sleeve of the guide vane can be timely adjusted, and the sleeve in the guide vane can be prevented from being blocked.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a front view of the installation of the present utility model.
Fig. 2 is a top view of the present utility model.
Fig. 3 is a partial schematic view of the present utility model.
Fig. 4 is a cross-sectional view at a in fig. 3.
Fig. 5 is a schematic view of a top ring according to the present utility model.
In the figure: the device comprises a base plate 1, a gasket 2, a disc spring 3, a top ring 4, a compression bolt 5, a hydraulic jack 6, a sleeve 7, a top cover 8, a movable guide vane 9, a first through hole 4-1, a horizontal measurement bubble 4-2 and a second through hole 4-3.
Detailed Description
As shown in fig. 1-5, a special tool for removing a sleeve in a movable guide vane comprises left and right top rings 4, wherein the inner side wall of each top ring 4 is an arc surface and can be matched with a movable guide vane 9. The inner side of each top ring 4 is provided with a plurality of first through holes 4-1 along the circumferential direction, and bolts on the sleeve 7 pass through the first through holes 4-1 and are locked by nuts, so that the top ring 4 and the sleeve 7 can be detachably connected and fixed. And the outer side of each top ring 4 is provided with a second through hole 4-3, and the compression bolt 5 can be in threaded connection with the backing plate 1 after penetrating through the second through hole 4-3. A disc spring 3 and a gasket 2 are sleeved on a compression bolt 5 between the top ring 4 and the backing plate 1. The top cover 8 at the lower end of the base plate 1 is provided with a hydraulic jack 6, and the hydraulic jack 6 can be extended to lift the base plate 1.
Working principle and process:
1) Passing a hold-down bolt 5 through a second through hole 4-3 of the top ring 4 (bolt head toward the horizontal measurement bubble 4-2 side); 2 gaskets 2 and 4 disc springs 3 are sleeved on the compression bolt 5; wherein, two disc springs 3 are a group, the bell mouths of the disc springs are opposite, and the gaskets 2 are positioned at two sides of the disc springs 3; the compression bolt 5 is screwed into the base plate 1, so that the compression amount of the disc spring reaches about 5 mm.
2) After the first through hole 4-1 of the top ring 4 is aligned with the bolt hole at the upper part of the sleeve 7, a fastening bolt is installed, so that the device is firmly connected with the sleeve 7. Two hydraulic jacks 6 with the same specification are arranged between the top cover 8 and the base plate 1, and the hydraulic jacks 6 are connected with the same oil pump.
3) Let the outlet pressure of the oil pump be P, the working area of the hydraulic jack 6 be S, and the pressure of the left disc spring 3 be F 1 The pressure of the right disc spring 3 is F 2 The compression amount of the left disc spring 3 is L 1 The compression amount of the right disc spring 3 is L 2 F before the hydraulic jack 6 is pressed 1 =F 2 ，L 1 =L 2 . When the oil pump pressurizes the hydraulic jack 6, if P×S<F 1 +F 2 Sleeve lifting force=2×p×s. F is set when the sleeve 7 is blocked 1 >F 2 L is then 1 >L 2 The left side of the sleeve 7 is blocked. Resetting 2P 1 ×S>F 1 +F 2 When the hydraulic pump stops pressurizing, the sleeve 7 lifting force=f 1 +F 2 . When the blocking resistance of the left side of the sleeve 7 is not large, the spring force F 1 >F 2 The sleeve 7 can be automatically aligned. When the blocking resistance is large, the blocking resistance of the sleeve 7 is judged by horizontally measuring the air bubble 4-2 of the top ring 4, and when the offset of a certain air bubble is more than or equal to 0.3mm/m, the air bubble needs to be synthesized, and the low point is independently jacked, so that the sleeve 7 is horizontally lifted.
Claims (5)
1. The utility model provides a sleeve demolishs specialized tool in movable guide vane which characterized in that: the hydraulic lifting device comprises left and right top rings (4), wherein the inner side of each top ring (4) is detachably connected with a sleeve (7), the outer side of each top ring (4) is connected with a base plate (1), and the lower end of the base plate (1) is lifted up through a hydraulic jack (6).
2. The special tool for removing the sleeve in the movable guide vane according to claim 1, wherein: the outer side is equipped with second through-hole (4-3) on top ring (4), and clamp bolt (5) pass second through-hole (4-3) and with backing plate (1) threaded connection downwards, cover has dish spring (3) on clamp bolt (5) between top ring (4), backing plate (1).
3. The special tool for removing the sleeve in the movable guide vane according to claim 2, wherein: the disc springs (3) on the compression bolts (5) are multiple, and every two disc springs are arranged oppositely at a group of large opening ends.
4. The special tool for removing the sleeve in the movable guide vane according to claim 2, wherein: the gasket (2) is sleeved on the compression bolt (5) and positioned on the outer side of the disc spring (3).
5. The special tool for removing the sleeve in the movable guide vane according to claim 1, wherein: and horizontal measuring bubbles (4-2) are arranged left and right on the top ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320547197.5U CN219704067U (en) | 2023-03-20 | 2023-03-20 | Special tool for dismantling sleeve in movable guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320547197.5U CN219704067U (en) | 2023-03-20 | 2023-03-20 | Special tool for dismantling sleeve in movable guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219704067U true CN219704067U (en) | 2023-09-19 |
Family
ID=88005544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320547197.5U Active CN219704067U (en) | 2023-03-20 | 2023-03-20 | Special tool for dismantling sleeve in movable guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219704067U (en) |
-
2023
- 2023-03-20 CN CN202320547197.5U patent/CN219704067U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |