CN220116017U - Piston ring dismounting lifting appliance and dismounting device for hydraulic turbine servomotor - Google Patents
Piston ring dismounting lifting appliance and dismounting device for hydraulic turbine servomotor Download PDFInfo
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- CN220116017U CN220116017U CN202321619482.XU CN202321619482U CN220116017U CN 220116017 U CN220116017 U CN 220116017U CN 202321619482 U CN202321619482 U CN 202321619482U CN 220116017 U CN220116017 U CN 220116017U
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- piston ring
- hydraulic turbine
- dismounting
- annular plate
- turbine servomotor
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a piston ring dismounting lifting appliance and a dismounting device for a hydraulic turbine servomotor. The lifting appliance for dismounting the piston ring of the hydraulic turbine servomotor solves the problem that the piston ring in the hydraulic turbine servomotor is difficult to detach by applying external force, and improves the working efficiency of replacing the combined sealing ring.
Description
Technical Field
The utility model relates to the technical field of equipment maintenance, in particular to a piston ring dismounting lifting appliance and a dismounting device for a hydraulic turbine servomotor.
Background
In a hydroelectric power plant, an inlet main valve of a water turbine generally adopts a cylinder valve, the cylinder valve is arranged between a fixed guide vane and a movable guide vane, water flow is cut off when the hydraulic power plant is fully closed, the hydraulic power plant is fully opened and positioned in a cavity formed between a top cover and a seat ring of the water turbine, the opening and closing of the cylinder valve are realized through pressure oil provided to a servomotor through an oil pressure device, when the pressure oil acts on the lower surface of a piston which is a rod cavity of the servomotor, and meanwhile, when the rodless cavity of the servomotor is communicated with oil, the pressure oil drives the piston to move, and a piston rod drives a cylinder valve body to move towards the opening direction so as to realize the opening of the cylinder valve; when the pressure oil acts on the rodless cavity of the servomotor, namely the upper surface of the piston, and meanwhile, oil is communicated from the rod cavity, the pressure oil drives the piston to move, and the piston rod drives the cylinder valve body to move towards the closing direction, so that the cylinder valve is closed.
In the related art, a piston rod in a piston cylinder of the servomotor and a piston ring are connected into an integral structure through a super nut and integrally move under the action of pressure oil, wherein the piston ring is assembled in a cylinder body through a combined sealing ring to improve the tightness of the servomotor, and the combined sealing ring inevitably suffers from abrasion and ageing in the long-time use process and needs to be replaced regularly.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art and provides a piston ring dismounting lifting appliance for a hydraulic turbine servomotor, which solves the problem that a piston ring in the hydraulic turbine servomotor is difficult to detach due to external force, and improves the working efficiency of replacing a combined sealing ring.
The utility model also provides a piston ring dismounting device for the hydraulic turbine servomotor.
The piston ring dismounting lifting appliance for the hydraulic turbine servomotor provided by the embodiment of the utility model comprises the following components: an annular plate; the support pieces are arranged at intervals along the circumferential direction of the annular plate, the support pieces comprise pushing parts and locking parts, the pushing parts are movable along the radial direction of the annular plate, and after the pushing parts are moved, the locking parts can lock the pushing parts; and the lifting lug is arranged on the top surface of the annular plate.
According to the piston ring dismounting hanger for the hydraulic turbine servomotor, the plurality of supporting pieces are arranged at intervals along the circumferential direction of the annular plate, the supporting pieces comprise the pushing parts and the locking parts, the pushing parts can move along the radial direction of the annular plate, after the pushing parts move, the locking parts can lock the pushing parts, lifting lugs are arranged on the top surface of the annular plate, when the combined sealing ring is replaced, the annular plate can be arranged in the inner wall of the piston ring, the pushing parts can extend out of the annular plate along the radial direction of the annular plate to be tightly attached to the inner wall of the piston ring, the pushing parts are fixed by means of the locking capacity of the locking parts, the annular plate can be embedded in the inner wall of the piston ring, when the friction force between the supporting pieces and the inner wall of the piston ring is larger than the friction force between the outer wall of the piston ring and the cylinder body, the lifting lugs on the top surface of the annular plate can be utilized to drive the piston ring to be separated from the cylinder body, and dismounting of the servomotor piston ring is realized.
Further, the piston ring dismounting lifting appliance for the hydraulic turbine servomotor further comprises a level, and the level is arranged on the top surface of the annular plate along the horizontal direction.
Further, a plurality of the supporting pieces are symmetrically arranged.
Further, the pushing part is a long screw rod, the locking part is a threaded cylinder, and the long screw rod is matched in the threaded cylinder.
Further, one end of the long screw rod, which is far away from the center of the annular plate, is provided with a protection sheet.
Further, the protection sheet is a copper sheet.
Further, the lifting lugs are multiple, and the lifting lugs are symmetrically arranged on the top surface of the annular plate.
The piston ring dismounting device for the hydraulic turbine servomotor comprises the chain block, the support and the piston ring dismounting lifting appliance for the hydraulic turbine servomotor, wherein the chain block is hung on the support, and the lifting hook of the chain block is connected with the lifting lug of the piston ring dismounting lifting appliance for the hydraulic turbine servomotor.
According to the piston ring dismounting device for the hydraulic turbine servomotor, disclosed by the embodiment of the utility model, the dismounting lifting appliance for the piston of the cylinder valve servomotor is combined with the chain block, so that the labor intensity of power plant workers when lifting the piston ring is reduced, and the convenience of dismounting the piston ring is improved.
Further, the lifting hook is detachably connected with the lifting lug through the U-shaped buckle.
Drawings
Fig. 1 is a schematic structural view of a piston ring dismounting sling for a hydraulic turbine servomotor in accordance with an embodiment of the present utility model.
Fig. 2 is a side view of a piston ring dismounting spreader for a hydraulic turbine servomotor in accordance with an embodiment of the utility model.
Fig. 3 is a side view of another view of a piston ring assembly and disassembly spreader for a hydraulic turbine servomotor in accordance with an embodiment of the present utility model.
Reference numerals:
the device comprises an annular plate 1, a supporting piece 2, a pushing part 21, a locking part 22, a protection piece 23, lifting lugs 3 and a level 4.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
As shown in fig. 1 to 3, a piston ring dismounting hanger for a hydraulic turbine servomotor according to an embodiment of the present utility model includes an annular plate 1, a plurality of support members 2, and lifting lugs 3.
Specifically, the plurality of supporting pieces 2 are arranged at intervals along the circumferential direction of the annular plate 1, the supporting pieces 2 include a pushing portion 21 and a locking portion 22, the pushing portion 21 is movable in the radial direction of the annular plate 1, after the pushing portion 21 is moved, the locking portion 22 can lock the pushing portion 21, and the lifting lugs 3 are mounted on the top surface of the annular plate 1.
When the combined sealing ring is replaced, firstly, an end cover of a cylinder body of the water turbine servomotor is required to be opened, then, a super nut in a piston ring is taken out, and the rest piston ring is difficult to take out because the outer surface of the rest piston ring is not provided with a point of action for applying external force, in the piston ring dismounting lifting tool for the water turbine servomotor, an annular plate 1 can be placed in the inner wall of the piston ring, a pushing part 21 can extend out of the annular plate 1 along the radial direction of the annular plate 1 to be tightly attached to the inner wall of the piston ring, the pushing part 21 is fixed by means of the locking capacity of a locking part 22, so that the annular plate 1 can be embedded in the inner wall of the piston ring by a supporting part 2, and when the friction force between the supporting part 2 and the inner wall of the piston ring is larger than the friction force between the outer wall of the piston ring and the cylinder body, the piston ring can be driven to be separated from the cylinder body by lifting the annular plate 1 by utilizing lifting lugs 3 on the top surface of the annular plate 1, and the piston ring is dismounted.
It can be appreciated that in the utility model, the inventor combines the structural characteristics of the piston ring to construct a disassembly lifting appliance capable of lifting the piston ring in the inner wall of the piston ring, has simple structure and convenient manufacturing and application, solves the difficult problem that the piston ring is difficult to be dismantled by applying external force, and improves the working efficiency of replacing the combined sealing ring.
According to the piston ring dismounting hanger for the hydraulic turbine servomotor, the plurality of supporting pieces are arranged at intervals along the circumferential direction of the annular plate, the supporting pieces comprise the pushing parts and the locking parts, the pushing parts can move along the radial direction of the annular plate, after the pushing parts move, the locking parts can lock the pushing parts, the lifting lugs are arranged on the top surface of the annular plate, when the combined sealing ring is replaced, the annular plate can be arranged in the inner wall of the piston ring, the pushing parts can extend out of the annular plate along the radial direction of the annular plate to be tightly attached to the inner wall of the piston ring, the pushing parts are fixed by means of the locking capacity of the locking parts, the annular plate can be embedded in the inner wall of the piston ring, when the friction force between the supporting pieces and the inner wall of the piston ring is larger than the friction force between the outer wall of the piston ring and the cylinder body, the lifting lugs on the top surface of the annular plate can be used for driving the piston ring to be lifted out of the cylinder body, and the piston ring dismounting of the servomotor is realized.
Further, as shown in fig. 1, the piston ring dismounting hanger for the hydraulic turbine servomotor further comprises a level 4, and the level 4 is mounted on the top surface of the annular plate 1 in the horizontal direction.
It should be noted that, the piston ring is difficult to avoid being skewed when being taken out in the cylinder body, if the piston ring cannot be leveled in time, the piston ring can be blocked in the cylinder body, and the piston ring dismounting lifting appliance for the hydraulic turbine servomotor is provided with the level meter 4 on the annular plate 1, and the air bubbles of the level meter 4 can display the balance state of the piston ring of the annular plate 1 at any time, so that the piston ring is convenient for staff to level at any time, the mounting ring is taken out quickly, and the working efficiency is improved.
Further, as shown in fig. 1 and 2, a plurality of the supporting pieces 2 are symmetrically arranged.
It will be appreciated that the symmetrically arranged supports 2 allow the annular plate 1 to be stressed evenly, improving the durability of the annular plate 1.
Further, the pushing portion 21 is a long screw, and the locking portion 22 is a threaded cylinder, in which the long screw is fitted.
The screw thread cylinder is required to be arranged along the radial direction of the annular plate 1, so that the end part of the long screw rod can be ensured to normally abut against the inner wall of the piston ring.
It can be understood that the rotation direction of the long screw rod in the screw thread cylinder is different, and the moving direction of the long screw rod is different, and when the long screw rod rotates forward, the long screw rod can gradually extend out of the annular plate 1 to be abutted against the inner wall of the piston ring, and after the long screw rod is abutted against the inner wall of the piston ring, the screw thread cylinder can automatically lock the long screw rod to be free from moving, so that the applicability of the supporting piece 2 is improved.
Further, as shown in fig. 2, the end of the long screw away from the center of the annular plate 1 has a protective sheet 23.
It will be appreciated that the protection sheet 23 prevents the long screw from directly contacting the inner wall of the piston ring, and prevents the end of the long screw from causing extrusion damage to the inner wall of the piston ring.
Further, as shown in fig. 2, the protective sheet 23 is a copper sheet.
It can be understood that the copper sheet has the advantages of good durability and high plasticity, and can enhance the durability of the protection sheet 23, and simultaneously promote the fit degree of the protection sheet 23 and the inner wall of the piston ring, thereby promoting the applicability of the protection sheet 23.
Further, as shown in fig. 1 and 3, the lifting lugs 3 are provided in plurality, and the plurality of lifting lugs 3 are symmetrically arranged on the top surface of the annular plate 1.
It can be understood that lifting forces applied to the annular plate 1 in all directions can be the same by symmetrically arranging the lifting lugs 3, so that the piston ring is ensured to be in a horizontal state during lifting, and the applicability of the piston ring dismounting lifting appliance for the hydraulic turbine servomotor is improved.
The piston ring dismounting device for the hydraulic turbine servomotor comprises a chain block (not shown), a support (not shown) and the piston ring dismounting lifting appliance for the hydraulic turbine servomotor according to the embodiment, wherein the chain block is suspended on the support, and a lifting hook of the chain block is connected with a lifting lug 3 of the piston ring dismounting lifting appliance for the hydraulic turbine servomotor.
It can be understood that when lifting the piston ring, firstly, the bracket can be placed near the servomotor cylinder, then the lifting hook of the chain block hung on the bracket is connected with the lifting lug 3 of the dismounting lifting tool, so that the labor intensity of power plant workers when lifting the piston ring can be reduced by using the chain block, and the convenience of dismounting the piston ring is improved.
According to the piston ring dismounting device for the hydraulic turbine servomotor, disclosed by the embodiment of the utility model, the piston ring dismounting lifting appliance for the hydraulic turbine servomotor is combined with the chain block, so that the labor intensity of power plant workers when lifting the piston ring is reduced, and the convenience of piston ring dismounting is improved.
Further, the lifting hook is detachably connected to the lifting lug 3 by being provided with a U-shaped buckle (not shown).
It can be understood that the U-shaped buckle promotes the stability of the connection of the lifting hook and the lifting lug 3, avoids accidents caused by the fact that the lifting hook is separated from the lifting lug 3 when the piston ring is lifted, and improves the use safety of the lifting device.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (9)
1. A piston ring dismouting hoist for hydraulic turbine servomotor, characterized by, include:
an annular plate;
the support pieces are arranged at intervals along the circumferential direction of the annular plate, the support pieces comprise pushing parts and locking parts, the pushing parts are movable along the radial direction of the annular plate, and after the pushing parts are moved, the locking parts can lock the pushing parts;
and the lifting lug is arranged on the top surface of the annular plate.
2. The piston ring mounting and dismounting hanger for a hydraulic turbine servomotor of claim 1, further comprising a level mounted on a top surface of the annular plate in a horizontal direction.
3. The piston ring mounting and dismounting spreader for a hydraulic turbine servomotor of claim 1, wherein a plurality of the support members are symmetrically disposed.
4. The piston ring mounting and dismounting hanger for a hydraulic turbine servomotor of claim 1, wherein the pushing portion is a long screw, the locking portion is a threaded cylinder, and the long screw is fitted in the threaded cylinder.
5. The lifting appliance for dismounting a piston ring of a hydraulic turbine servomotor of claim 4, wherein one end of the long screw rod far from the center of the annular plate is provided with a protection sheet.
6. The piston ring mounting and dismounting hanger for a hydraulic turbine servomotor of claim 5, wherein the protective sheet is a copper sheet.
7. The piston ring mounting and dismounting hanger for a hydraulic turbine servomotor of claim 1, wherein the plurality of lifting lugs are symmetrically arranged on the top surface of the annular plate.
8. A piston ring dismounting device for a hydraulic turbine servomotor, comprising: the hydraulic turbine servomotor piston ring dismounting lifting appliance comprises a chain block, a bracket and the hydraulic turbine servomotor piston ring dismounting lifting appliance, wherein the chain block is hung on the bracket, and a lifting hook of the chain block is connected with a lifting lug of the hydraulic turbine servomotor piston ring dismounting lifting appliance.
9. The piston ring removing and installing apparatus for a hydraulic turbine servomotor of claim 8, wherein said hook is detachably connected to said lifting lug by being provided with a U-shaped buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321619482.XU CN220116017U (en) | 2023-06-25 | 2023-06-25 | Piston ring dismounting lifting appliance and dismounting device for hydraulic turbine servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321619482.XU CN220116017U (en) | 2023-06-25 | 2023-06-25 | Piston ring dismounting lifting appliance and dismounting device for hydraulic turbine servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220116017U true CN220116017U (en) | 2023-12-01 |
Family
ID=88915442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321619482.XU Active CN220116017U (en) | 2023-06-25 | 2023-06-25 | Piston ring dismounting lifting appliance and dismounting device for hydraulic turbine servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220116017U (en) |
-
2023
- 2023-06-25 CN CN202321619482.XU patent/CN220116017U/en active Active
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